//borrowed from http://www.openhosting.co.uk/articles/webdev/5918/

function setPopups() {
	// check to see that the browser supports the getElementsByTagName method
	// if not, exit the loop 
	if (!document.getElementsByTagName) {
		return false; 
	} 
	// create an array of objects of each link in the document 
	var popuplinks = document.getElementsByTagName("a");
	// loop through each of these links (anchor tags) 
	for (var i=0; i < popuplinks.length; i++) {	
		// if the link has a class of "popup"...
		var classes = popuplinks[i].className.split(' ');
		for(var j = 0; j < classes.length; j++) {
			if (classes[j] == "popup") {
				// add an onclick event on the fly to pass the href attribute	
				// of the link to our second function, openPopUp 	
				popuplinks[i].onclick = function() {	
					openPopUp(this.getAttribute("href"));	
					return false; 	
				} 	
			}
		}
	} 
} 

function openPopUp(linkURL) {
	window.open(linkURL,'popup','width=760,height=520,scrollbars=yes')
}