实现像google那样自动提示的下拉框源码

<script language="javascript">
var intIndex=0;arrList = new Array();
function test() 
{
    
    dearray("1111,222,222a,aaa,aa1,bb,b222,b3,323313,3213,32213,dsfsdddd");
    smanPromptList(arrList,"inputer1");
    smanPromptList(arrList,"inputer2");
    smanPromptList(arrList,"inputer3")
}
   
function dearray(aa)//定义array
{
    arrList = aa.split(',');
    
}
function getAbsoluteWidth(ob)
{
        return ob.offsetWidth
}

function smanPromptList(arrList,objInputId){
        var objouter=document.getElementById("__smanDisp") //显示的DIV对象
        var objInput = document.getElementById(objInputId); //文本框对象
        var selectedIndex=-1;
        var intTmp; //循环用的:)
        if (objInput==null) {alert('smanPromptList初始化失败:没有找到"'+objInputId+'"文本框');return ;}
            //文本框失去焦点
            objInput.onblur=function(){
                objouter.style.display='none';