function topMenuLightOn(image) {

	if(navigator.userAgent.indexOf("Gecko")>-1) {
		change(image);
	} 
else 
	{
	var d;
	if (!e) var e = window.event;
	if (e.target) {d = e.target;}	
	else if (e.srcElement) d = e.srcElement;
	if (d.nodeType == 3) // defeat Safari bug
		d = d.parentNode;

	if (d) 
		{ 
		if (d.tagName == "IMG") {
		
	            change(d);			
			}
		}
		
	}
}

function topMenuLightOff(image) {

	if(navigator.userAgent.indexOf("Gecko")>-1) {
		changeBack(image);
	} 
else 
	{
	var d;
	if (!e) var e = window.event;
	if (e.target) {d = e.target;}	
	else if (e.srcElement) d = e.srcElement;
	if (d.nodeType == 3) // defeat Safari bug
		d = d.parentNode;

	if (d) 
		{ 
		if (d.tagName == "IMG") {
		
	            changeBack(d);			
			}
		}
		
	}
}






function change(d) {

if (d.src.indexOf('_1.') > -1)
{
    d.src = d.src.replace('_1.','_1a.');
}   
return;
                if( d.src.indexOf( 'about_avt_1.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/about_avt_1a.gif';
		        }
		        
		        else if ( d.src.indexOf( 'educational_concept_1.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/educational_concept_1a.gif';
		        }
		        
		        else if ( d.src.indexOf( 'alumni_network_1.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/alumni_network_1a.gif';
		        }
		        
		        
		        else if ( d.src.indexOf( 'faculty_1.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/faculty_1a.gif';
		        }
		        
		        else if ( d.src.indexOf( 'avt_in_the_media_1.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/avt_in_the_media_1a.gif';
		        }	
		        
	            if( d.src.indexOf( 'about_avt.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/about_avt_a.gif';
		        }		        	
		        
		        
                 else if ( d.src.indexOf( 'educational_concept.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/educational_concept_a.gif';
		        }
		        
		        else if ( d.src.indexOf( 'alumni_network.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/alumni_network_a.gif';
		        }
		      
		        
		        else if ( d.src.indexOf( 'faculty.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/faculty_a.gif';
		        }
		        
		        else if ( d.src.indexOf( 'avt_in_the_media.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/avt_in_the_media_a.gif';
		        }
		        	  /*
		 */      			        	       		  	        
}


function changeBack(d) {

if (d.src.indexOf('_1a.') > -1)
{
    d.src = d.src.replace('_1a.','_1.');
}   
return;
               if( d.src.indexOf( 'about_avt_1a.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/about_avt_1.gif';
		        }
		        
		        else if ( d.src.indexOf( 'educational_concept_1a.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/educational_concept_1.gif';
		        }
		        
		        else if ( d.src.indexOf( 'alumni_network_1a.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/alumni_network_1.gif';
		        }
		        
		        
		        else if ( d.src.indexOf( 'faculty_1a.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/faculty_1.gif';
		        }
		        
		        else if ( d.src.indexOf( 'avt_in_the_media_1a.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/avt_in_the_media_1.gif';
		        }	
		        
	            if( d.src.indexOf( 'about_avt_a.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/about_avt.gif';
		        }		        	
		        
		        
                 else if ( d.src.indexOf( 'educational_concept_a.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/educational_concept.gif';
		        }
		        
		        else if ( d.src.indexOf( 'alumni_network_a.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/alumni_network.gif';
		        }
		        
		        
		        else if ( d.src.indexOf( 'faculty_a.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/faculty.gif';
		        }
		        
		        else if ( d.src.indexOf( 'avt_in_the_media_a.gif' ) > -1 )
		        {
			        d.src = '../images/buttons/avt_in_the_media.gif';
		        }
		       }