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

function setBannerImage(path){
	document.getElementById("header").getElementsByTagName("img")[0].src = path;
}