用js实现输入提示(自动完成)的实例代码_javascript技巧

复制代码 代码如下: autoComplete .autoComplete {margin:8px;position:relative;float:left;} .autoComplete input {width:200px;height:25px;margin:0;padding:0;line-height:25px;} .autoComplete ul {z-index:-12;padding:0px;margin:0px;border:1px #333 solid;width:200px;background:white;display:none;position:absolute;left:0;top:28px;*margin-left:9px;*margin-top:2px;margin-top:1px;} .autoComplete li {list-style:none;} .autoComplete li a {display:block;color:#000;text-decoration:none;padding:1px 0 1px 5px;_width:97%;} .autoComplete li a:hover {color:#000;background:#ccc;border:none;} // var getElementsByClassName = function (searchClass, node, tag) {/* 兼容各浏览器的选择class的方法；(：http://www.jb51.net，想了解更多请看这个地址) */ node = node || document, tag = tag ? tag.toUpperCase() : "*"; if(document.getElementsByClassName){/* 支持getElementsByClassName的浏览器 */ var temp = node.getElementsByClassName(searchClass); if(tag=="*"){ return temp; } else { var ret = new Array(); for(var i=0; i if(temp[i].nodeName==tag) ret.push(temp[i]); return ret; } }else{/* 不支持getElementsByClassName的浏览器 */ var classes = searchClass.split(" "), elements = (tag === "*" && node.all)? node.all : node.getElementsByTagName(tag), patterns = [], returnElements = [], current, match; var i = classes.length; while(--i >= 0) patterns.push(new RegExp("(^|s)" + classes[i] + "(s|$)")); var j = elements.length; while(--j >= 0){ current = elements[j], match = false; for(var k=0, kl=patterns.length; k match = patterns[k].test(current.className); if(!match) break; } if(match) returnElements.push(current); } return returnElements; } }; var addEvent=(function(){/* 用此函数添加事件防止事件覆盖 */ if(document.addEventListener){ return function(type, fn){ this.addEventListener(type, fn, false); }; }else if(document.attachEvent){ return function(type,fn){ this.attachEvent(on+type, function () { return fn.call(this, window.event);/* 兼容IE */ }); }; } })(); ;(function(window){ /* 插件开始 */ var autoComplete=function(o){ var handler=(function(){ var handler=function(e,o){ return new handler.prototype.init(e,o); };/* 为每个选择的dom都创建一个相对应的对象，这样选择多个dom时可以很方便地使用 */ handler.prototype={ e:null, o:null, timer:null, show:0, input:null, popup:null, init:function(e,o){/* 设置初始对象 */ this.e=e, this.o=o, this.input=this.e.getElementsByTagName(this.o.input)[0], this.popup=this.e.getElementsByTagName(this.o.popup)[0], this.initEvent();/* 初始化各种事件 */ }, match:function(quickExpr,value,source){/* 生成提示 */ var li = null; for(var i in source){ if( value.length>0 && quickExpr.exec(source[i])!=null ){ li = document.createElement(li); li.innerHTML = +source[i]+; this.popup.appendChild(li); } } if(this.popup.getElementsByTagName(a).length) this.popup.style.display=block; else this.popup.style.display=none; }, &n

用js实现输入提示(自动完成)的实例代码_javascript技巧

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