function siteMove(form)
{
	if (form.value!='')
	{
		window.open(form.value)
	}
}

function openWindow(addr)
{ 
	open(addr, 
		"NewWindow", 
		"left=50,top=50,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=550,height=500");
}

function openStudy(addr)
{ 
	open(addr, 
		"NewStudy", 
		"left=50,top=50,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=580,height=300");
}

function hide_layer(lname)
{
	if (document.layers)
		document.layers[lname].visibility = "hide"
	if(document.all)
		document.all(lname).style.visibility = "hidden" 
}

function show_layer(lname)
{
	if(document.layers)
		document.layers[lname].visibility = "show"
	if(document.all)
		document.all(lname).style.visibility = "visible" 
}

function random(n) 
{
	return ( Math.floor(Math.random()*100000)%n + 1 );
}