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;

// ****************************************************************
// UPDATED:  jun 29 '04  BY:  jc (typo  1-05 rc  'blasnk')
//
// Make a new popup window...
// Parameters:
//   oAnchor: required object reference to the anchor (link)
//   sWindow: string for the window name if wanting to reuse window or null string ('') to use the default.
//   sProps: string of window properties ('width=300,height=200') or null string ('') to use the defaults defined here.
// Notes:
//   Notice in the example that the 'href' value maintains URL
//   (not "#" or "javascript:") and the 'title' attribute indicates
//   this will be a popup window. These things are required for
//   accessibility reasons.
// 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=490,height=300,x=340,y=75,left=340,top=75,scrollbars,resizable';
	if(sUrl) var oPopup = window.open(sUrl,sWindowName,sProps);
	// An Opera bug returns too early if you focus the window, so we don't focus it in that browser.
	// Only a noticable defect (in that browser) if a window is already open and hidden behind another window.
	if(oPopup && !isOp) oPopup.focus();
	// If popup was created successfully, cancel link in calling window.
	// Acts as regular link in browser that has popup blocking enabled.
	return (oPopup)?false:true;
}

// Below is function for off-site Popups, with default sizes set.


function pop_off(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=700,height=300,x=60,y=50,left=60,top=50,scrollbars,resizable,toolbar,menubar,location,status';
	if(sUrl) var oPopup = window.open(sUrl,sWindowName,sProps);
	if(oPopup && !isOp) oPopup.focus();
	return (oPopup)?false:true;
}

// Below is function for Login Popups, with default sizes set.


function pop_on(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=650,height=300,x=75,y=20,left=75,top=20,scrollbars,resizable,toolbar,menubar,location,status';
	if(sUrl) var oPopup = window.open(sUrl,sWindowName,sProps);
	if(oPopup && !isOp) oPopup.focus();
	return (oPopup)?false:true;
}