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) {
		parent.appendChild("newElament");
	}else {
		parent.insertBefor(newElement, targetElement.nextSibling);
	}
}