if(document.images)
	{
	over=new Image();
	over.src="/images/right_arrow.gif";
	out=new Image();
	out.src="/images/dummy.gif";
	}
	
function changeImages()
{
if(document.images)
{
for(var i=0;i<changeImages.arguments.length;i+=2)
{
document[changeImages.arguments[i]].src=eval(changeImages.arguments[i+1]+".src");
}
}
}

function show()
{
if (navigator.appName=='Microsoft Internet Explorer') 
	document.all.layer1.style.visibility='visible';
else document.getElementById("layer1").style.visibility='visible';
}
function hide() {
if (navigator.appName=='Microsoft Internet Explorer') 
	document.all.layer1.style.visibility='hidden';
else document.getElementById("layer1").style.visibility='hidden';
}