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

  
 	
function insertAfter(newElement,targetElement) {
  var parent = targetElement.parentNode;
   if (parent.lastChild == targetElement)  {
      oarent.appendChild(newElement);
   } else {
     parent.insertBefore(newElement,targetElement.nextSibling);
     
   }
 }
 
 function addClass(element,value) {
   if (!element.className) {
     element.className = value;
  } else {
    newClassName = element.className;
    newClassName+= " ";
    newClassName+= value;
    element.className = newClassName;
    
  }
}