var qui = false ;
window.addEvent('domready', function() { 
	var anotherEl = $('qui_menu');
	var morph = new Fx.Morph('qui_menu' , {duration: 200 });
	$('qui_img').addEvent('mouseover', function(e) {
		e.stop();
			qui = true;
			morph.start({
				width: '460px',
				height: '25px'
			});
			$('qui_img').src='images/header-nav-hover-qui.gif';
	});
	
	$('membre').addEvent('mouseover', function(e) {
	if($('qui_menu').style.width != '0px' )
	{
		morph.start({
					width: '0px',
					height: '0px'
				});
		$('qui_img').src='images/header-nav-qui.gif';
		
		qui = false;
	}
	
	});
	
	$('inscription').addEvent('mouseover', function(e) {
	if($('qui_menu').style.width != '0px' )
	{
		morph.start({
					width: '0px',
					height: '0px'
				});
		$('qui_img').src='images/header-nav-qui.gif';
		qui = false;
	}
	});

	$('contact').addEvent('mouseover', function(e) {
	if($('qui_menu').style.width != '0px' )
	{
		morph.start({
					width: '0px',
					height: '0px'
				});
		$('qui_img').src='images/header-nav-qui.gif';
		qui = false;
	}
	});
	
	$('essais_img').addEvent('mouseover', function(e) {
			$('essais_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-hover-essais.gif';
			$('essais_block').style.display = 'inline';
			
			if( $('analyse_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-analyses.gif' ) $('analyse_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-analyses.gif';
			if( $('etude_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-etudes.gif' ) $('etude_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-etudes.gif';
			if( $('service_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-services.gif' ) $('service_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-services.gif';
			if( $('formation_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-formation.gif' ) $('formation_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-formation.gif';
			if( $('expertise_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-expertises.gif' ) $('expertise_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-expertises.gif';
			if( $('equipement_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-equipements.gif' ) $('equipement_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-equipements.gif';
			
			if( $('analyse_block').style.display == 'inline' ) $('analyse_block').style.display = 'none';
			if( $('etude_block').style.display == 'inline' ) $('etude_block').style.display = 'none';
			if( $('service_block').style.display == 'inline' ) $('service_block').style.display = 'none';
			if( $('formation_block').style.display == 'inline' ) $('formation_block').style.display = 'none';
			if( $('expertise_block').style.display == 'inline' ) $('expertise_block').style.display = 'none';
			if( $('equipement_block').style.display == 'inline' ) $('equipement_block').style.display = 'none';			
	});		
	
	$('analyse_img').addEvent('mouseover', function(e) {
			$('analyse_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-hover-analyses.gif';
			$('analyse_block').style.display = 'inline';
			
			if( $('essais_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-essais.gif' ) $('essais_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-essais.gif';
			if( $('etude_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-etudes.gif' ) $('etude_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-etudes.gif';
			if( $('service_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-services.gif' ) $('service_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-services.gif';
			if( $('formation_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-formation.gif' ) $('formation_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-formation.gif';
			if( $('expertise_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-expertises.gif' ) $('expertise_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-expertises.gif';
			if( $('equipement_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-equipements.gif' ) $('equipement_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-equipements.gif';
			
			if( $('essais_block').style.display == 'inline' ) $('essais_block').style.display = 'none';
			if( $('etude_block').style.display == 'inline' ) $('etude_block').style.display = 'none';
			if( $('service_block').style.display == 'inline' ) $('service_block').style.display = 'none';
			if( $('formation_block').style.display == 'inline' ) $('formation_block').style.display = 'none';
			if( $('expertise_block').style.display == 'inline' ) $('expertise_block').style.display = 'none';
			if( $('equipement_block').style.display == 'inline' ) $('equipement_block').style.display = 'none';
			
	});		
	
	$('etude_img').addEvent('mouseover', function(e) {
			$('etude_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-hover-etudes.gif';
			$('etude_block').style.display = 'inline';
		
			if( $('essais_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-essais.gif' ) $('essais_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-essais.gif';
			if( $('analyse_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-analyses.gif' ) $('analyse_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-analyses.gif';
			if( $('service_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-services.gif' ) $('service_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-services.gif';
			if( $('formation_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-formation.gif' ) $('formation_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-formation.gif';
			if( $('expertise_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-expertises.gif' ) $('expertise_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-expertises.gif';
			if( $('equipement_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-equipements.gif' ) $('equipement_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-equipements.gif';
			
			if( $('essais_block').style.display == 'inline' ) $('essais_block').style.display = 'none';
			if( $('analyse_block').style.display == 'inline' ) $('analyse_block').style.display = 'none';
			if( $('service_block').style.display == 'inline' ) $('service_block').style.display = 'none';
			if( $('formation_block').style.display == 'inline' ) $('formation_block').style.display = 'none';
			if( $('expertise_block').style.display == 'inline' ) $('expertise_block').style.display = 'none';
			if( $('equipement_block').style.display == 'inline' ) $('equipement_block').style.display = 'none';
		
	});	

	$('service_img').addEvent('mouseover', function(e) {
			$('service_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-hover-services.gif';
			$('service_block').style.display = 'inline';

			if( $('essais_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-essais.gif' ) $('essais_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-essais.gif';
			if( $('analyse_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-analyses.gif' ) $('analyse_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-analyses.gif';
			if( $('etude_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-etudes.gif' ) $('etude_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-etudes.gif';
			if( $('formation_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-formation.gif' ) $('formation_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-formation.gif';
			if( $('expertise_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-expertises.gif' ) $('expertise_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-expertises.gif';
			if( $('equipement_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-equipements.gif' ) $('equipement_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-equipements.gif';
			
			if( $('essais_block').style.display == 'inline' ) $('essais_block').style.display = 'none';
			if( $('analyse_block').style.display == 'inline' ) $('analyse_block').style.display = 'none';
			if( $('etude_block').style.display == 'inline' ) $('etude_block').style.display = 'none';
			if( $('formation_block').style.display == 'inline' ) $('formation_block').style.display = 'none';
			if( $('expertise_block').style.display == 'inline' ) $('expertise_block').style.display = 'none';
			if( $('equipement_block').style.display == 'inline' ) $('equipement_block').style.display = 'none';
	});	
	
	
	$('formation_img').addEvent('mouseover', function(e) {
			$('formation_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-hover-formation.gif';
			$('formation_block').style.display = 'inline';

			if( $('essais_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-essais.gif' ) $('essais_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-essais.gif';
			if( $('analyse_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-analyses.gif' ) $('analyse_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-analyses.gif';
			if( $('etude_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-etudes.gif' ) $('etude_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-etudes.gif';
			if( $('service_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-services.gif' ) $('service_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-services.gif';
			if( $('expertise_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-expertises.gif' ) $('expertise_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-expertises.gif';
			if( $('equipement_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-equipements.gif' ) $('equipement_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-equipements.gif';
			
			if( $('essais_block').style.display == 'inline' ) $('essais_block').style.display = 'none';
			if( $('analyse_block').style.display == 'inline' ) $('analyse_block').style.display = 'none';
			if( $('etude_block').style.display == 'inline' ) $('etude_block').style.display = 'none';
			if( $('service_block').style.display == 'inline' ) $('service_block').style.display = 'none';
			if( $('expertise_block').style.display == 'inline' ) $('expertise_block').style.display = 'none';
			if( $('equipement_block').style.display == 'inline' ) $('equipement_block').style.display = 'none';
	});	



	$('expertise_img').addEvent('mouseover', function(e) {
			$('expertise_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-hover-expertises.gif';
			$('expertise_block').style.display = 'inline';

			if( $('essais_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-essais.gif' ) $('essais_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-essais.gif';
			if( $('analyse_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-analyses.gif' ) $('analyse_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-analyses.gif';
			if( $('etude_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-etudes.gif' ) $('etude_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-etudes.gif';
			if( $('service_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-services.gif' ) $('service_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-services.gif';
			if( $('formation_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-formation.gif' ) $('formation_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-formation.gif';
			if( $('equipement_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-equipements.gif' ) $('equipement_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-equipements.gif';
			
			if( $('essais_block').style.display == 'inline' ) $('essais_block').style.display = 'none';
			if( $('analyse_block').style.display == 'inline' ) $('analyse_block').style.display = 'none';
			if( $('etude_block').style.display == 'inline' ) $('etude_block').style.display = 'none';
			if( $('service_block').style.display == 'inline' ) $('service_block').style.display = 'none';
			if( $('formation_block').style.display == 'inline' ) $('formation_block').style.display = 'none';
			if( $('equipement_block').style.display == 'inline' ) $('equipement_block').style.display = 'none';
	});	



	$('equipement_img').addEvent('mouseover', function(e) {
			$('equipement_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-hover-equipements.gif';
			$('equipement_block').style.display = 'inline';

			if( $('essais_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-essais.gif' ) $('essais_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-essais.gif';
			if( $('analyse_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-analyses.gif' ) $('analyse_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-analyses.gif';
			if( $('etude_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-etudes.gif' ) $('etude_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-etudes.gif';
			if( $('service_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-services.gif' ) $('service_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-services.gif';
			if( $('formation_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-formation.gif' ) $('formation_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-formation.gif';
			if( $('expertise_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-expertises.gif' ) $('expertise_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-expertises.gif';
			
			if( $('essais_block').style.display == 'inline' ) $('essais_block').style.display = 'none';
			if( $('analyse_block').style.display == 'inline' ) $('analyse_block').style.display = 'none';
			if( $('etude_block').style.display == 'inline' ) $('etude_block').style.display = 'none';
			if( $('service_block').style.display == 'inline' ) $('service_block').style.display = 'none';
			if( $('formation_block').style.display == 'inline' ) $('formation_block').style.display = 'none';
			if( $('expertise_block').style.display == 'inline' ) $('expertise_block').style.display = 'none';
	});	
	

	$('essais_block').addEvent('mouseleave', function(e) {
			if( $('essais_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-essais.gif' ) $('essais_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-essais.gif';
			if( $('analyse_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-analyses.gif' ) $('analyse_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-analyses.gif';
			if( $('etude_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-etudes.gif' ) $('etude_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-etudes.gif';
			if( $('service_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-services.gif' ) $('service_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-services.gif';
			if( $('formation_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-formation.gif' ) $('formation_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-formation.gif';
			if( $('expertise_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-expertises.gif' ) $('expertise_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-expertises.gif';
			if( $('equipement_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-equipements.gif' ) $('equipement_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-equipements.gif';

			if( $('essais_block').style.display == 'inline' ) $('essais_block').style.display = 'none';
			if( $('analyse_block').style.display == 'inline' ) $('analyse_block').style.display = 'none';
			if( $('etude_block').style.display == 'inline' ) $('etude_block').style.display = 'none';
			if( $('service_block').style.display == 'inline' ) $('service_block').style.display = 'none';
			if( $('formation_block').style.display == 'inline' ) $('formation_block').style.display = 'none';
			if( $('expertise_block').style.display == 'inline' ) $('expertise_block').style.display = 'none';
			if( $('equipement_block').style.display == 'inline' ) $('equipement_block').style.display = 'none';
});	
	
	$('analyse_block').addEvent('mouseleave', function(e) {
			if( $('essais_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-essais.gif' ) $('essais_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-essais.gif';
			if( $('analyse_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-analyses.gif' ) $('analyse_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-analyses.gif';
			if( $('etude_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-etudes.gif' ) $('etude_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-etudes.gif';
			if( $('service_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-services.gif' ) $('service_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-services.gif';
			if( $('formation_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-formation.gif' ) $('formation_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-formation.gif';
			if( $('expertise_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-expertises.gif' ) $('expertise_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-expertises.gif';
			if( $('equipement_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-equipements.gif' ) $('equipement_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-equipements.gif';

			if( $('essais_block').style.display == 'inline' ) $('essais_block').style.display = 'none';
			if( $('analyse_block').style.display == 'inline' ) $('analyse_block').style.display = 'none';
			if( $('etude_block').style.display == 'inline' ) $('etude_block').style.display = 'none';
			if( $('service_block').style.display == 'inline' ) $('service_block').style.display = 'none';
			if( $('formation_block').style.display == 'inline' ) $('formation_block').style.display = 'none';
			if( $('expertise_block').style.display == 'inline' ) $('expertise_block').style.display = 'none';
			if( $('equipement_block').style.display == 'inline' ) $('equipement_block').style.display = 'none';
});	
	$('etude_block').addEvent('mouseleave', function(e) {
			if( $('essais_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-essais.gif' ) $('essais_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-essais.gif';
			if( $('analyse_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-analyses.gif' ) $('analyse_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-analyses.gif';
			if( $('etude_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-etudes.gif' ) $('etude_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-etudes.gif';
			if( $('service_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-services.gif' ) $('service_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-services.gif';
			if( $('formation_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-formation.gif' ) $('formation_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-formation.gif';
			if( $('expertise_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-expertises.gif' ) $('expertise_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-expertises.gif';
			if( $('equipement_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-equipements.gif' ) $('equipement_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-equipements.gif';

			if( $('essais_block').style.display == 'inline' ) $('essais_block').style.display = 'none';
			if( $('analyse_block').style.display == 'inline' ) $('analyse_block').style.display = 'none';
			if( $('etude_block').style.display == 'inline' ) $('etude_block').style.display = 'none';
			if( $('service_block').style.display == 'inline' ) $('service_block').style.display = 'none';
			if( $('formation_block').style.display == 'inline' ) $('formation_block').style.display = 'none';
			if( $('expertise_block').style.display == 'inline' ) $('expertise_block').style.display = 'none';
			if( $('equipement_block').style.display == 'inline' ) $('equipement_block').style.display = 'none';
});	
	$('service_block').addEvent('mouseleave', function(e) {
			if( $('essais_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-essais.gif' ) $('essais_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-essais.gif';
			if( $('analyse_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-analyses.gif' ) $('analyse_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-analyses.gif';
			if( $('etude_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-etudes.gif' ) $('etude_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-etudes.gif';
			if( $('service_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-services.gif' ) $('service_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-services.gif';
			if( $('formation_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-formation.gif' ) $('formation_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-formation.gif';
			if( $('expertise_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-expertises.gif' ) $('expertise_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-expertises.gif';
			if( $('equipement_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-equipements.gif' ) $('equipement_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-equipements.gif';

			if( $('essais_block').style.display == 'inline' ) $('essais_block').style.display = 'none';
			if( $('analyse_block').style.display == 'inline' ) $('analyse_block').style.display = 'none';
			if( $('etude_block').style.display == 'inline' ) $('etude_block').style.display = 'none';
			if( $('service_block').style.display == 'inline' ) $('service_block').style.display = 'none';
			if( $('formation_block').style.display == 'inline' ) $('formation_block').style.display = 'none';
			if( $('expertise_block').style.display == 'inline' ) $('expertise_block').style.display = 'none';
			if( $('equipement_block').style.display == 'inline' ) $('equipement_block').style.display = 'none';
});	
	$('formation_block').addEvent('mouseleave', function(e) {
			if( $('essais_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-essais.gif' ) $('essais_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-essais.gif';
			if( $('analyse_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-analyses.gif' ) $('analyse_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-analyses.gif';
			if( $('etude_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-etudes.gif' ) $('etude_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-etudes.gif';
			if( $('service_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-services.gif' ) $('service_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-services.gif';
			if( $('formation_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-formation.gif' ) $('formation_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-formation.gif';
			if( $('expertise_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-expertises.gif' ) $('expertise_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-expertises.gif';
			if( $('equipement_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-equipements.gif' ) $('equipement_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-equipements.gif';

			if( $('essais_block').style.display == 'inline' ) $('essais_block').style.display = 'none';
			if( $('analyse_block').style.display == 'inline' ) $('analyse_block').style.display = 'none';
			if( $('etude_block').style.display == 'inline' ) $('etude_block').style.display = 'none';
			if( $('service_block').style.display == 'inline' ) $('service_block').style.display = 'none';
			if( $('formation_block').style.display == 'inline' ) $('formation_block').style.display = 'none';
			if( $('expertise_block').style.display == 'inline' ) $('expertise_block').style.display = 'none';
			if( $('equipement_block').style.display == 'inline' ) $('equipement_block').style.display = 'none';
});	
	$('expertise_block').addEvent('mouseleave', function(e) {
			if( $('essais_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-essais.gif' ) $('essais_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-essais.gif';
			if( $('analyse_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-analyses.gif' ) $('analyse_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-analyses.gif';
			if( $('etude_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-etudes.gif' ) $('etude_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-etudes.gif';
			if( $('service_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-services.gif' ) $('service_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-services.gif';
			if( $('formation_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-formation.gif' ) $('formation_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-formation.gif';
			if( $('expertise_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-expertises.gif' ) $('expertise_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-expertises.gif';
			if( $('equipement_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-equipements.gif' ) $('equipement_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-equipements.gif';

			if( $('essais_block').style.display == 'inline' ) $('essais_block').style.display = 'none';
			if( $('analyse_block').style.display == 'inline' ) $('analyse_block').style.display = 'none';
			if( $('etude_block').style.display == 'inline' ) $('etude_block').style.display = 'none';
			if( $('service_block').style.display == 'inline' ) $('service_block').style.display = 'none';
			if( $('formation_block').style.display == 'inline' ) $('formation_block').style.display = 'none';
			if( $('expertise_block').style.display == 'inline' ) $('expertise_block').style.display = 'none';
			if( $('equipement_block').style.display == 'inline' ) $('equipement_block').style.display = 'none';
});	
	$('equipement_block').addEvent('mouseleave', function(e) {
			if( $('essais_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-essais.gif' ) $('essais_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-essais.gif';
			if( $('analyse_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-analyses.gif' ) $('analyse_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-analyses.gif';
			if( $('etude_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-etudes.gif' ) $('etude_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-etudes.gif';
			if( $('service_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-services.gif' ) $('service_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-services.gif';
			if( $('formation_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-formation.gif' ) $('formation_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-formation.gif';
			if( $('expertise_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-expertises.gif' ) $('expertise_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-expertises.gif';
			if( $('equipement_img').src == 'http://www.ifts-sls.com/images/col-gauche-nav-hover-equipements.gif' ) $('equipement_img').src = 'http://www.ifts-sls.com/images/col-gauche-nav-equipements.gif';

			if( $('essais_block').style.display == 'inline' ) $('essais_block').style.display = 'none';
			if( $('analyse_block').style.display == 'inline' ) $('analyse_block').style.display = 'none';
			if( $('etude_block').style.display == 'inline' ) $('etude_block').style.display = 'none';
			if( $('service_block').style.display == 'inline' ) $('service_block').style.display = 'none';
			if( $('formation_block').style.display == 'inline' ) $('formation_block').style.display = 'none';
			if( $('expertise_block').style.display == 'inline' ) $('expertise_block').style.display = 'none';
			if( $('equipement_block').style.display == 'inline' ) $('equipement_block').style.display = 'none';
});	
	

	
	
	
	
	
	
	
	

});