Several concise functions of javascript_javascript skills

Copy code The code is as follows:

//Date class
function myDate(time) {
var d = new Date(time);
this.y=d.getFullYear();
this.m=d.getMonth();
this.d=d.getDate( );
this.h=d.getHours();
this.m=d.getMinutes();
this.s=d.getSeconds();
}
// Create DOM
function createDOM(e,p){
var el=document.createElement(e);
if(!p)
p=document.body;
p.appendChild( el);
return el;
}
//Add event listening for dom
function addEvent(el,event,fn){
el.addEventListener?el.addEventListener(event,fn) ,false):el.attachEvent("on" event,fn);
}