var isNav6,isNav4,isIE4;

if (navigator.appName == "Netscape"){
	isNav6 = (navigator.appVersion.charAt(0) >= "5");
	isNav4 = (navigator.appVersion.charAt(0) >= "4");
} else {
	isIE4 = (navigator.appVersion.charAt(0) >= "4");
}
var shown = new Array ;

function toggleLayer (which,toWhat) {
//alert(which);
//alert(toWhat);
	if(shown[which]) {
		if (isNav6) {document.getElementById(which).style.visibility = "hidden"; }
		else if (isNav4) {document.layers[which].visibility = "hidden"; }
		else if (isIE4) {eval("document.all." + which + ".style.visibility = 'hidden'"); }
		shown[which] = false;
	}
	else {
	//alert(which);
	//alert(eval("document.all." + which));
		if (isNav6) { document.getElementById(which).style.visibility = "visible"; }
		else if (isNav4) { document.layers[which].visibility = "show"; }
		else if (isIE4) { eval("document.all." + which + ".style.visibility = 'visible'"); }
		shown[which] = true;
	}
}

function toggleMoreDetails(whichLayer)
{
	if (document.getElementById)
	{
		var style2 = document.getElementById(whichLayer).style;
		if(style2.display == "none")
		{
			style2.display = "block";
		}
		else
		{
			style2.display = "none";
		}
		//style2.display = style2.display? "":"block";
	}
	else if (document.all)
	{
		var style2 = document.all[whichLayer].style;
		if(style2.display == "none")
		{
			style2.display = "block";
		}
		else
		{
			style2.display = "none";
		}
	}
	else if (document.layers)
	{
		var style2 = document.layers[whichLayer].style;
		if(style2.display == "none")
		{
			style2.display = "block";
		}
		else
		{
			style2.display = "none";
		}
	}
}