function clearText(thefield){
    thefield.style.color="#000";
    if (thefield.value=="Search"){
	thefield.value="";
	document.getElementById("searchtriangle").style.display="inline";
    }
} 
function unclearText(thefield){
    if (thefield.value==""){
	thefield.style.color="#AAA"
	thefield.value="Search";
	document.getElementById("searchtriangle").style.display="none";
    }
} 

function toggledisplay (id) { 
    var elem = document.getElementById(id); 
    if (elem.className=="shown") { 
	elem.className="hid"; 
    } 
    else { 
	elem.className="shown"; 
    } 
} 
function update_div(){
    document.all.IFrameName.src='rollover.php';
    document.all.IFrameName.style.display='inline';
}