// rollover script //
function menuRollOver(obj)
{
	var pid = obj.id;
	//var pid = id.split("_")[1];
	if (pid != page_name)
		obj.src = "_images/nav_"+ pid +"_on.gif";
}

function menuRollOut(obj)
{
	var pid = obj.id;
	//var pid = id.split("_")[1];
	if (pid != page_name)
		obj.src = "_images/nav_"+ pid +"_off.gif";
}

function popCentered(url,widthVar,heightVar,scrollbars, windowName){
        //scrollbars param accepts 'yes' or 'no'
        var Xpos= (screen.availWidth - widthVar)/2;
        var Ypos= (screen.availHeight - heightVar)/2;
        var str="toolbar=no,location=no,scrollbars=" + scrollbars + ",directories=no,status=no,menubar=no,resizable=no,copyhistory=no,left=" + Xpos + ",screenX=" + Xpos + ",top=" + Ypos + ",screenY=" + Ypos + ",width="+widthVar+",innerWidth="+widthVar+",height="+heightVar+",innerHeight="+heightVar;

        window.open(url,windowName,str);
}