/* popup */

var sUserAgent = navigator.userAgent.toLowerCase();
var isIE = document.all?true:false;
var isNS4 = document.layers?true:false;
var isOp = (sUserAgent.indexOf('opera')!=-1)?true:false;
var isMoz = (sUserAgent.indexOf('mozilla/5')!=-1 && sUserAgent.indexOf('opera')==-1 && sUserAgent.indexOf('msie')==-1)?true:false;

// ****************************************************************
// Example use:
//   <a href="/foo.htm" onclick="return pop(this,'survey');" title="Survey opens a new window.">Take our survey!</a>
//   <a href="/foo.htm" onclick="return pop(this,'','width=200,height=200');" title="Opens a new window.">Foo</a>
//   <a href="/foo.htm" onclick="return pop(this);" title="Opens a new window.">Foo</a>
// ****************************************************************
function pop(oAnchor,sWindow,sProps){
	var sUrl = '';
	if(oAnchor.getAttribute) sUrl = oAnchor.getAttribute('href');
	if(sUrl=='' && isIE) sUrl = window.event.srcElement.getAttribute('href');
	if(sUrl=='') sUrl = oAnchor.href;
	var sWindowName = sWindow?sWindow:'_blank';
	if(!sProps) sProps = 'width=640,height=480,scrollbars,resizable,toolbar,status,menubar,location';
	if(sUrl) var oPopup = window.open(sUrl,sWindowName,sProps);
	if(oPopup && !isOp) oPopup.focus();
	return (oPopup)?false:true;
}