function addLoadEvent(func){ 
	var oldonload = window.onload; 
	if (typeof window.onload != 'function') 
		window.onload = func; 
	else 
		window.onload = function(){ 
			if (oldonload)
				oldonload(); 
			func(); 
		} 
} 

function openNewWindow(){
	var links = document.getElementsByTagName("a");		
	for (var i=0; i < links.length; i++){
		if (links[i].className.match("blank")){
			links[i].onclick=function(){
				window.open(this.getAttribute("href"));
				return false;
			}
			links[i].onkeypress=function(){
				window.open(this.getAttribute("href"));
				return false;
			}
		}
	}
}

addLoadEvent(openNewWindow);