// JavaScript Document

// Loads external links, defined as rel="external", in a new window

function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
 }
}

// Loads links to protected content, defined as rel="protected", in a new window

function externalProtected() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "protected")
     { anchor.target = "_blank";
	 anchors[i].title = 'This links to protected content'; }
   else if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "protected")
       anchors[i].title = 'This links to protected content';
 }
}

// Loads PDF's in a new window on Windows when rel="pdf" is used

function externalPdfs() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (navigator.platform == "Win32" &&
	   anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "pdf")
     { anchor.target = "_blank";
	 anchors[i].title = 'This link opens a PDF document'; }
   else if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "pdf")
       anchors[i].title = 'This link opens a PDF document';
 }
}

// Loads links in a default popup window when rel="popup" is used. Loads links in a var defined popup window when rel="altpopup" is used.

function popUp () {

var x = document.getElementsByTagName('a');
for (var i=0;i<x.length;i++)
{
	if (x[i].rel == 'altpopup')
	{
		x[i].onclick = function () {
			return altpop(this.href)
		}
		x[i].title = 'This link opens a popup window';
	}
	else if (x[i].rel == 'altpopup2')
	{
		x[i].onclick = function () {
			return altpop2(this.href)
		}
		x[i].title = 'This link opens a popup window';
	}
// !! Put rel="otherpopup" in front of other popup script in the link, or the link will not open a popup in Safari !!
	else if (x[i].rel == 'otherpopup')
	{
		x[i].title = 'This link opens a popup window';
	}
	else if (x[i].rel == 'popup')
	{
		x[i].onclick = function () {
			return pop(this.href)
		}
		x[i].title = 'This link opens a popup window';
	}
}

var popUp = null;

function altpop(url)
{
	if (popUp && !popUp.closed)
		popUp.location.href = url;
	else
		popUp = window.open(url,'popUp',_ALTPOPUP_FEATURES);
	popUp.focus();
	return false;
}
function altpop2(url)
{
	if (popUp && !popUp.closed)
		popUp.location.href = url;
	else
		popUp = window.open(url,'popUp',_ALTPOPUP2_FEATURES);
	popUp.focus();
	return false;
}
function pop(url)
{
	if (popUp && !popUp.closed)
		popUp.location.href = url;
	else
		popUp = window.open(url,'popUp','height=500,width=450,scrollbars=yes,resizable=yes,menubar=yes');
	popUp.focus();
	return false;
}
}

// Combine functions which need window.onload so they don't overwrite each other.

function multipleOnload()
{
externalLinks();
externalPdfs();
popUp();
}
window.onload = multipleOnload;