// --------------------------------------------------------------------------
// Name        : pseutils.js
// Created     : 12/09/2001
// Author      : Peter Ebdon, Professional Software Engineering Ltd (peter.ebdon@pseltd.com)
// Purpose     : Generic javascript utlility finctions
// Copyright   : Copyright (c) 2002 Professional Software Engineering Ltd
// ---------------------------------------------------------------------------------------
// Revision History
// 
// --------------------------------------------------------------------------

var gstrAgent = window.navigator.userAgent;
var gstrAgentVers = parseInt(gstrAgent.charAt(gstrAgent.indexOf("/")+1),10);

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function is_explorer()
{
	return gstrAgent.indexOf("MSIE") > 0;
}
	
function is_macexplorer()
{
	if (gstrAgent.indexOf("Mac") <= 0)
		return false;
	else
		return gstrAgent.indexOf("MSIE") > 0;
}
	
function is_macnetscape()
{
	if (gstrAgent.indexOf("Mac") <= 0)
		return false;
	else
		return !(gstrAgent.indexOf("MSIE") > 0);
}
	
function is_macie4()
{
	if ((gstrAgent.indexOf("Mac") > 0) && (gstrAgent.indexOf("MSIE") > 0) && (gstrAgentVers < 5))
		return true;
	else
		return false;
}

function is_pcnetscape()
{
	if (gstrAgent.indexOf("Mac") > 0)
		return false;
	else
		return !(gstrAgent.indexOf("MSIE") > 0);
}
	
function is_aol()
{
	return gstrAgent.indexOf("AOL") > 0;
}

// Popup window handling

var gwinPopup = "none";

function openPSEWin(url,w,h,l,t)
{
	var secs = new Date();
	closePopupIfOpen();

		gwinPopup=window.open(url,'popup'+secs.getTime(),'width='+w+',height='+h+',left='+l+',top='+t+',toolbar=no,location=no,status=no,scrollbars=yes,resizable=yes');
}

function openFixedWin(url,w,h,l,t)
{
	var secs = new Date();
	closePopupIfOpen();

	gwinPopup=window.open(url,'popup'+secs.getTime(),'width='+w+',height='+h+',left='+l+',top='+t+',toolbar=no,menubar=no,titlebar=no,location=no,status=no,scrollbars=yes,resizable=no');
}

// popup image
function imagePopup(id,w,h)
{
	openFixedWin('/popupImage.aspx?id='+id,w,h,0,0)
}

// If the popup window has been opened, close it now
function closePopupIfOpen()
{	
	if (gwinPopup)
	{
		if (!is_macie4())
			{
				if (typeof(gwinPopup) == "object")
				{
					if (gwinPopup.closed == false)
					{
						gwinPopup.close();
					}
					gwinPopup="none";
				}
			}
		else
			{
				if (typeof(gwinPopup) == "object")
				{
					gwinPopup="none";
				}
			}
	}
}

// establish current windows' width
function getWindowWidth() {
	if (is_explorer)
	{
		return top.window.outerWidth;
	}
	else
	{
		return self.innerWidth;
	}

}

// establish current windows' width
function getWindowHeight() {
	
	if (is_explorer)
	{
		return top.window.outerHeight;
	}
	else
	{
		return self.innerHeight;
	}

}