/* This handy function from Simon Willison allows you to stack up 'window.onload' events <br />
without them stepping on each other's toes. It's explained here - http://www.sitepoint.com/blog-post-view.php?id=171578 */
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}
	/*
	 * cssjs
	 * written by Christian Heilmann (http://icant.co.uk)
	 * eases the dynamic application of CSS classes via DOM
	 * parameters: action a, object o and class names c1 and c2 (c2 optional)
	 * actions: swap exchanges c1 and c2 in object o
	 *			add adds class c1 to object o
	 *			remove removes class c1 from object o
	 *			check tests if class c1 is applied to object o
	 * example:	cssjs('swap',document.getElementById('foo'),'bar','baz');
	 */
	function cssjs(a,o,c1,c2)
	{
		switch (a){
			case 'swap':
				o.className=!cssjs('check',o,c1)?o.className.replace(c2,c1):o.className.replace(c1,c2);
			break;
			case 'add':
				if(!cssjs('check',o,c1)){o.className+=o.className?' '+c1:c1;}
			break;
			case 'remove':
				var rep=o.className.match(' '+c1)?' '+c1:c1;
				o.className=o.className.replace(rep,'');
			break;
			case 'check':
				return new RegExp('\\b'+c1+'\\b').test(o.className)
			break;

		}
	}

/**********
xhtml1.1 valid replacement for target="_blank"
Also a Savvy way to do popup windows
*********/
/* This is our old popup code - parts of the site still use it, so I need to keep it */
function acpopup(strURL,strType,strHeight,strWidth) {
var strOptions="";
if (strType=="console") strOptions="resizable,height="+strHeight+",width="+strWidth;
window.open(strURL, '', strOptions);
}
/* new accessible, unobtrusive popup code */
function windowLinks() {
    if(!document.getElementsByTagName) {
         return;
    }
    var anchors = document.getElementsByTagName("a");
    for (var i = 0; i < anchors.length; i++) {
         var anchor = anchors[i];
         var relIndex = anchor.rel;
		 if (relIndex){
		 var relSplit = relIndex.split("|");
/* XHTML compliant target attribute */
		 if (relSplit[0] == "external") {
            anchor.target = "_blank";
			anchor.className = "external";
			anchor.title = "Load in new window: "+ anchor.href;
/* XHTML compliant popup attribute */
   			} else if (relSplit[0] == "popup") {
			anchor.className = "popup";
			anchor.title = "Link loads in Popup Window";
			anchor.popupWidth = relSplit[1];
			anchor.popupHeight = relSplit[2];
	        anchor.onclick = function() {acpopup(this.href,'console',this.popupWidth,this.popupHeight);return false;};
			}
		}
	}
}
addLoadEvent(function() {
	windowLinks();	
});