var left = (screen.width-600)/2;
var top= (screen.height-(800 + 110))/2;
var para = "toolbar=0, scrollbars=1, location=0, statusbar=0, menubar=0, resizable=yes, width=700, height=500,left="+left+", top="+top;
function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}
function setOpen() {	
	var myEls = getElementsByClass("popUp", document, "a");
	for (i=0; i < myEls.length; i++) {
		winArr = myEls[i];
		var addText = "<span class='accessibility'> - opens new window</span>"
		var orgnText = winArr.innerHTML;
		myEls[i].innerHTML = orgnText+addText;
		winArr.onclick = function()	{
			var destination = this.attributes.getNamedItem("href").value;
			window.open(destination, 'NewWindow', para);
			return false;
		}
	}
}
plusEvent(window, 'load', setOpen);