模仿IE自动完成功能

< !DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title> New Document </title>
<meta NAME="Generator" CONTENT="EditPlus">
</meta><meta NAME="Author" CONTENT="">
</meta><meta NAME="Keywords" CONTENT="">
</meta><meta NAME="Description" CONTENT="">
<style>
body,div {
	font-family:verdana;
	line-height:100%;
	font-size:9pt;
}
input {
	width:300px;
}
h1 {
	text-align:center;
	font-size:2.2em;
}
#divf {
	margin:10px;
	font-size:0.8em;
	text-align:center;
}
#divc {
	border:1px solid #333333;
}
.des {
	width:500px;
	background-color:lightyellow;
	border:1px solid #333;
	padding:20px;
	margin-top:20px;
}
.mouseover {
	color:#ffffff;
	background-color:highlight;
	width:100%;
	cursor:default;
}
.mouseout {
	color:#000000;
	width:100%;
	background-color:#ffffff;
	cursor:default;
}
</style>
<script LANGUAGE="JavaScript">
<!--
 
// script by blueDestiny
// email : blueDestiny [at] 126 . com
 
// Object: jsAuto
// browser: ie, mf.
// example:
 
// step1 : 
// create autocomplete container, return object and bind event to the object, and 
///create a new jsAuto instance:
// <div id="divautocomplete">
// var autocomplete = new jsAuto("autocomplete","divautocomplete")
// handle event:
// autocomplete.handleEvent(value, returnObjectID)
// <input id="rautocomplete" onkeyup="autocomplete.handleEvent(this.value,"ratocomplete",event)/>
 
// step2 :
// add autocompete item:
// autocomplete.item(string)
// string must be a string var, you can split the string by ","
// autocomplete.item("blueDestiny,never-online,csdn,blueidea")
 
// http://www.never-online.com
 
function jsAuto(instanceName,objID)
{
	this._msg = [];
	this._x = null;
	this._o = document.getElementById( objID );
	if (!this._o) return;
	this._f = null;
	this._i = instanceName;
	this._r = null;
	this._c = 0;
	this._s = false;
	this._v = null;
	this._o.style.visibility = "hidden";
	this._o.style.position = "absolute";
	this._o.style.zIndex = "9999";
this._o.style.overflow = "auto";
this._o.style.height = "50";
	return this;
};
 
jsAuto.prototype.directionKey=function() { with (this)
{
	var e = _e.keyCode ? _e.keyCode : _e.which;
	var l = _o.childNodes.length;
	(_c>l-1 || _c&lt;0) ? _s=false : "";
 
	if( e==40 && _s )
	{
		_o.childNodes[_c].className="mouseout";
		(_c >= l-1) ? _c=0 : _c ++;
		_o.childNodes[_c].className="mouseover";
	}
	if( e==38 && _s )
	{
		_o.childNodes[_c].className="mouseout";
		_c--< =0 ? _c = _o.childNodes.length-1 : "";
		_o.childNodes[_c].className="mouseover";
	}
	if( e==13 )
	{
		if(_o.childNodes[_c] && _o.style.visibility=="visible")
		{
			_r.value = _x[_c];
			_o.style.visibility = "hidden";
		}
	}
	if( !_s )
	{
		_c = 0;
		_o.childNodes[_c].className="mouseover";
		_s = true;
	}
}};
 
// mouseEvent.
jsAuto.prototype.domouseover=function(obj) { with (this)
{
	_o.childNodes[_c].className = "mouseout";
	_c = 0;
	obj.tagName=="DIV" ? obj.className="mouseover" : obj.parentElement.className="mouseover";
}};
jsAuto.prototype.domouseout=function(obj)
{
	obj.tagName=="DIV" ? obj.className="mouseout" : obj.parentElement.className="mouseout";
};
jsAuto.prototype.doclick=function(msg) { with (this)
{
	if(_r)
	{
		_r.value = msg;
		_o.style.visibility = "hidden";
	}
	else
	{
		alert("javascript autocomplete ERROR :\n\n can not get return object.");
		return;
	}
}};
 
// object method;
jsAuto.prototype.item=function(msg)
{
	if( msg.indexOf(",")>0 )
	{
		var arrMsg=msg.split(",");
		for(var i=0; i<arrmsg .length; i++)
		{
			arrMsg[i] ? this._msg.push(arrMsg[i]) : "";
		}
	}
	else
	{
		this._msg.push(msg);
	}
	this._msg.sort();
};
jsAuto.prototype.append=function(msg) { with (this)
{
	_i ? "" : _i = eval(_i);
	_x.push(msg);
	var div = document.createElement("DIV");
 
	//bind event to object.
	div.onmouseover = function(){_i.domouseover(this)};
	div.onmouseout = function(){_i.domouseout(this)};
	div.onclick = function(){_i.doclick(msg)};
	var re  = new RegExp("(" + _v + ")","i");
	div.style.lineHeight="140%";
	div.className = "mouseout";
	if (_v) div.innerHTML = msg.replace(re , "<strong>$1");
	div.style.fontFamily = "verdana";
 
	_o.appendChild(div);
}};
jsAuto.prototype.display=function() { with(this)
{
	if(_f&&_v!="")
	{
		_o.style.left = _r.offsetLeft;
		_o.style.width = _r.offsetWidth;
		_o.style.top = _r.offsetTop + _r.offsetHeight;
		_o.style.visibility = "visible";
	}
	else
	{
		_o.style.visibility="hidden";
	}
}};
jsAuto.prototype.handleEvent=function(fValue,fID,event) { with (this)
{
	var re;
	_e = event;
	var e = _e.keyCode ? _e.keyCode : _e.which;
	_x = [];
	_f = false;
	_r = document.getElementById( fID );
	_v = fValue;
	_i = eval(_i);
	re = new RegExp("^" + fValue + "", "i");
	_o.innerHTML="";
 
	for(var i=0; i<_msg .length; i++)
	{
		if(re.test(_msg[i]))
		{
			_i.append(_msg[i]);
			_f = true;
		}
	}
 
	_i ? _i.display() : alert("can not get instance");
 
	if(_f)
	{
		if((e==38 || e==40 || e==13))
		{
			_i.directionKey();
		}
		else
		{
			_c=0;
			_o.childNodes[_c].className = "mouseover";
			_s=true;
		}
	}
}};
window.onerror=new Function("return true;");
//-->
</_msg></arrmsg></script>
</meta></head>
 
<body>
<div id="divc">
	<!--this is the autocomplete container.-->
</div>
<h1>Autocomplete Function</h1>
<div align="center">
<input onkeyup="jsAutoInstance.handleEvent(this.value,'auto',event)" id="auto"/>
</div>
<div id="divf">
	Power By Miracle, never-online
</div>
 
<script LANGUAGE="JavaScript">
<!--
var jsAutoInstance = new jsAuto("jsAutoInstance","divc");
jsAutoInstance.item("a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,j-start,k-start,l-start,m-start,n-start,o-start,p-start,q-start,r-start,s-start,t-start,u-start,v-start,w-start,x-start,y-start,z-start,z-start,a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,j-start,k-start,l-start,m-start,n-start,o-start,p-start,q-start,r-start,s-start,t-start,u-start,v-start,w-start,x-start,y-start,z-start,z-start,a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,j-start,k-start,l-start,m-start,n-start,o-start,p-start,q-start,r-start,s-start,t-start,u-start,v-start,w-start,x-start,y-start,z-start,z-start,a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,j-start,k-start,l-start,m-start,n-start,o-start,p-start,q-start,r-start,s-start,t-start,u-start,v-start,w-start,x-start,y-start,z-start,z-start,a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,j-start,k-start,l-start,m-start,n-start,o-start,p-start,q-start,r-start,s-start,t-start,u-start,v-start,w-start,x-start,y-start,z-start,z-start,a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,j-start,k-start,l-start,m-start,n-start,o-start,p-start,q-start,r-start,s-start,t-start,u-start,v-start,w-start,x-start,y-start,z-start,z-start,a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,j-start,k-start,l-start,m-start,n-start,o-start,p-start,q-start,r-start,s-start,t-start,u-start,v-start,w-start,x-start,y-start,z-start,z-start,a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,j-start,k-start,l-start,m-start,n-start,o-start,p-start,q-start,r-start,s-start,t-start,u-start,v-start,w-start,x-start,y-start,z-start,z-start,a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,j-start,k-start,l-start,m-start,n-start,o-start,p-start,q-start,r-start,s-start,t-start,u-start,v-start,w-start,x-start,y-start,z-start,z-start,a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,j-start,k-start,l-start,m-start,n-start,o-start,p-start,q-start,r-start,s-start,t-start,u-start,v-start,w-start,x-start,y-start,z-start,z-start,a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,j-start,k-start,l-start,m-start,n-start,o-start,p-start,q-start,r-start,s-start,t-start,u-start,v-start,w-start,x-start,y-start,z-start,z-start,a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,j-start,k-start,l-start,m-start,n-start,o-start,p-start,q-start,r-start,s-start,t-start,u-start,v-start,w-start,x-start,y-start,z-start,z-start");
jsAutoInstance.item("blueDestiny");
jsAutoInstance.item("BlueMiracle,Blue");
jsAutoInstance.item("angela,geniuslau");
jsAutoInstance.item("never-online");
//-->
</script>
</body>
</html>

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