// JScript File

function switchid(id){	
	hideallids();
	showdiv(id);
}

function hideallids(){
	//loop through the array and hide each element by id
	for (var i=0;i<menuElements.length;i++){
		hidediv(menuElements[i]);
	}
	
	for(var i=0;i<menuImageElements.length;i++)
	{
		setimageout(menuImageElements[i]);
	}
}

function setimageout(id)
{
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).src='http://www.ed-media.net/img/ecampustours/ui/cp_arrow.gif';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.src='http://www.ed-media.net/img/ecampustours/ui/cp_arrow.gif';
		}
		else { // IE 4
			document.all.id.src='http://www.ed-media.net/img/ecampustours/ui/cp_arrow.gif';
		}
	}
}

function hidediv(id) {
	//safe function to hide an element with a specified id
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		}
		else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
}

function showdiv(id) {
	//safe function to show an element with a specified id
		  
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		}
		else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
	
	var imageid = 'img'+id;
	
	//	set the down arrow
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(imageid).src='http://www.ed-media.net/img/ecampustours/ui/cp_arrow2.gif';
	}
	else {
		if (document.layers) { // Netscape 4
			document.imageid.src='http://www.ed-media.net/img/ecampustours/ui/cp_arrow2.gif';
		}
		else { // IE 4
			document.all.imageid.src='http://www.ed-media.net/img/ecampustours/ui/cp_arrow2.gif';
		}
	}
}