// -------------------------------------------------------
//
// -------------------------------------------------------


function win_open(url,w,h)		
{
	window.open(url,'','directories=no,location=no,menubar=no,resizable=yes,scrollbars=yes,status=no,toolbar=no,width='+w+',height='+h+',left='+(screen.availWidth-w)/2+',top='+(screen.availHeight-h)/2);
}

// -------------------------------------------------------
//
// -------------------------------------------------------


function change_display(id,class_name)
{
	document.getElementById(id).className=class_name;
}