function doPrint() {
	if(!document.getElementsByTagName) return false;
	var prnt = document.getElementsByTagName('a');
	for (var i=0; i<prnt.length; i++) {
		if (prnt[i].className && 
		(' ' + prnt[i].className + ' ').indexOf(' print ') != -1) {
			prnt[i].onclick = function() {
				window.print();
			}
		}
	}
}

addLoadEvent(doPrint);