/* check to insure rollovers work */

if (document.images)



{


/* navigation */

	nav_home_off = new Image();

	nav_home_on = new Image();


	nav_references_off = new Image();

	nav_references_on = new Image();
	

	nav_lectures_off = new Image();

	nav_lectures_on = new Image();
	
	
	nav_discussion_off = new Image();

	nav_discussion_on = new Image();
	
	
	logo_off = new Image();

	logo_on = new Image();
	
	
	
/* navigation */

	nav_home_off.src = "http://id.bobulate.com/images/nav_home_off.gif";

	nav_home_on.src = "http://id.bobulate.com/images/nav_home_on.gif";

	nav_references_off.src = "http://id.bobulate.com/images/nav_references_off.gif";

	nav_references_on.src = "http://id.bobulate.com/images/nav_references_on.gif";
	
	nav_lectures_off.src = "http://id.bobulate.com/images/nav_lectures_off.gif";

	nav_lectures_on.src = "http://id.bobulate.com/images/nav_lectures_on.gif";
	
	nav_discussion_off.src = "http://id.bobulate.com/images/nav_discussion_off.gif";

	nav_discussion_on.src = "http://id.bobulate.com/images/nav_discussion_on.gif";
	
	logo_off.src = "http://id.bobulate.com/images/logo_off.gif";

	logo_on.src = "http://id.bobulate.com/images/logo_on.gif";
		
	}

	

/* rollovers */

function onmenu(imgName){

        if(document.images) {

        document[imgName].src = eval(imgName + '_on.src');
       

        }

}


function offmenu(imgName){

        if(document.images) {

        document[imgName].src = eval(imgName + '_off.src');     

        }

}


/* popup window */

function popup (url) {

		window.open (url,'mini','menubar=0,location=0,status=0,height=460,width=540,scrollbars=no');
		
		}
		
		
		
		
function popup_search (url) {

		window.open (url,'mini','menubar=0,location=0,status=0,height=585,width=540,scrollbars=no');
		
		}