代码出现问题了，拖曳效果实现不了找了n次了，愣是没找到问题所在，求大神？

Question

function getByclass(clsName,parent) {

var oParent=parent?document.getElementById(parent):document,

eles=[],

elements=oParent.getElementsByTagName('*');

for(var i=0,l=elements.length;i<1;i++){

if(elements[i].className==clsName){

eles.push(elements[i]);

}

}

return eles;

}

window.onload=drag;

function drag() {

var oTitle=getByclass('login_logo_webqq','loginPanel')[0];

oTitle.onmousedown=fnDown;

}

function fnDown(argument) {

var oDrag=docuemnt.getElementById('loginPanel');

document.onmousemove=function (event) {

event = event || window.event;

oDrag.style.left=event.clientX+'px';

oDrag.style.top=event.clientY+'px';

}

}

Answer 1

for(var i=0,l=elements.length;i<1;i++)这里写错了，变量l赋值但没用上