日期:2014-05-16  浏览次数:20548 次

纯javascript,放百度自动补全

下面是js代码:

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script type="text/javascript">
    var inputVlaue;
    var div;
    var ul;
    var ccc ;//= ["111","222","2","3332","233","333","444","555","666","777","888","999"];
    var index = -1;
    /*初始化变量*/
    function init(){
        inputVlaue = document.forms["myForm1"].colors;
        div = document.getElementById("popup");
        ul = document.getElementById("colors_ul");
    }
    
    /*更新北京*/
    function updateBg(){
        for(var i=0;i<ul.getElementsByTagName('li').length;i++){
            ul.getElementsByTagName('li')[i].className = "clear";    
        }
    }
    function start(event){
         //兼容IE   
        event = event || window.event;  
        //如果按了down键           
        if(event.keyCode==40){  
            index = index + 1;
            //如果“提示”列表已经显示,则把焦点切换到列表中的第一个数据项上
            if(index == ul.getElementsByTagName('li').length){
                index = 0;
                updateBg();
                ul.getElementsByTagName('li')[index].className = "over" 
                inputVlaue.value = ul.getElementsByTagName('li')[index].innerHTML ;
            }else{
                updateBg();
                ul.getElementsByTagName('li')[index].className = "over" 
                inputVlaue.value = ul.getElementsByTagName('li')[index].innerHTML ;
            }
            return false;
        }  
        //如果按了up键  
        else if(event.keyCode==38){  
            index = index - 1;
            //alert(index);
            //如果“提示”列表已经显示,则把焦点切换到列表中的最后一个数据项上  
             if(index == -2){
                index = 0;
                updateBg();
                ul.getElementsByTagName('li')[index].className = "over" 
                inputVlaue.value = ul.getElementsByTagName('li')[index].innerHTML ;
            }else if(index == -1){
                index = ul.getElementsByTagName('li').length - 1;
                updateBg();
                ul.getElementsByTagName('li')[index].className = "over" 
                inputVlaue.value = ul.getElementsByTagName('li')[index].innerHTML ;
            }else{
                updateBg();
                ul.getElementsByTagName('li')[index].className = "over" 
                inputVlaue.value = ul.getElementsByTagName('li')[index].innerHTML ;
            }
            return false;
        }else if(event.keyCode==13){
                div.className = "show";
                return false;
        }else{
            index = -1;
            init();
            ajaxFunction(inputVlaue.value);
        }
    }
    /*清空*/
    function clearField(){
        for(var i = ul.childNodes.length - 1; i >=0; i--){
            ul.removeChild(ul.childNodes[i]);
        }
        div.className = "hide";
    }
    
    /*设置显示*/
    function setField(pipei){
        /**/
        div.className = "show";
        clearField();
        var oLi;
        for(var i = 0;i<pipei.length;i++){
            oLi = document.createElement("li");
            ul.appendChild(oLi);
            oLi.appendChild(document.createTextNode(pipei[i]));
            oLi.onmousemove = function(){
                updateBg()
                this.className = "mouseover";    
            }
            oLi.onmouseout = function(){
                updateBg()
                this.className = "mouseout";    
            }