//Script for pop-up menu of "Exhibits"
//July 2001

var exhibit = true;

function overExhibit(){
	exhibit = false;
	toggleVisibility('Layer1','show','visible','visible');
	update();
}
	
function notOver(){
	exhibit = true;
}

//Update function to check if mouse is within boundries
function update(){

if (exhibit){
	toggleVisibility('Layer1','hidden','hidden','hidden');	
	}
else{
	setTimeout('update()', 1000);
	}
}

/*
Toggle Layer Visibility
© Eddie Traversa (nirvana.media3.net)
To add more shock to your site, visit www.DHTML Shock.com
*/
function toggleVisibility(id, NNtype, IEtype, WC3type) {
    if (document.getElementById) {
        eval("document.getElementById(id).style.visibility = \"" + WC3type + "\"");
    } else {
        if (document.layers) {
            document.layers[id].visibility = NNtype;
        } else {
            if (document.all) {
                eval("document.all." + id + ".style.visibility = \"" + IEtype + "\"");
            }
        }
    }
}