// JavaScript Document

function myAddEvent(obj,sEv,fn){

    alert('fn:'+fn);

    if(obj.attachEvent){

        obj.attachEvent('on'+sEv,fn);

    }else{

        obj.addEventListener(sEv,fn,false);

    }

}

/*getClassName 完整版*/

function getClassName(oParent,sClass){

    var aEle = oParent.getElementsByTagName('*');

    var iResult = [];

    /*一般如果需要传递参数就用new RegExp,不用//，//会把里面的所有内容都当场字符串*/

    var re = new RegExp('\\b'+sClass+'\\b');

    for(var i=0;i<aEle.length;i++){

        if(re.test(aEle[i].className)){

            iResult.push(aEle[i]);

        }

    }

    return iResult;

}

function Vquery(vArg){

    this.elements = [];

    switch(typeof vArg){

        case 'function':

                alert(111);

                myAddEvent(window,'load',vArg);

            break;

        case 'string':

            switch(vArg.charAt(0)){

                case '#'://id

                    var obj = document.getElementById(vArg.substring(1));

                    this.elements.push(obj);

                    break;

                case '.'://class

                    this.elements = getClassName(document,vArg.substring(1));

                    break;

                default    ://tagname

                    this.elements = document.getElementsByTagName(vArg);

                    break;

            }

            break;

        default: /*对象*/

            break;

    }

}