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

//popup function
function photoPops(){
if(!document.getElementsByTagName) return false;
var links=document.getElementsByTagName("a");
for(var i=0; i<links.length; i++){
if(links[i].getAttribute("className")=="popups" || links[i].getAttribute("class")=="popups"){
links[i].onclick = function() {
popUp(this.getAttribute("href"));
return false;
}
}
}
}

function popUp(winURL){
window.open(winURL,"popup","width=900,height=470");
}

//addLoadEvent
addLoadEvent(photoPops);