you can use ajax to use auto complete type plug-in..
<style>
label._tags {
padding:5px 10px;
margin:0px;
border:solid thin #ccc;
border-radius:3px;
display: inline-block;
}
label._tags span {
padding:2px 10px;
margin: 0px 10px;
color:#FFF;
border-radius:700px;
font-family:"calibri",verdana,serif;
background-color:teal;
}
</style>
<script type="text/javascript">
var request;
var tag=new Array();
function getXMLObject(){
if(window.XMLHttpRequest){
return(new XMLHttpRequest);
}else if(window.ActiveXObject){
return(new ActiveXObject("Microsoft.XMLHttp"));
}else{
return (null);
}
}
function getCategory(){
var address="Ajax_testing";
request=getXMLObject();
var data=document.getElementById("multitag").value;
var nwadd=address+"?text="+data;
request.onreadystatechange=showResultsubject;
request.open("GET",nwadd,true);
request.send();
}
function close()
{
var y=document.getElementById("p");
var myNode = document.getElementById("p");
while (myNode.firstChild) {
myNode.removeChild(myNode.firstChild);
}
y.setAttribute("style","dispaly:none;");
}
function removetag(id)
{
var y=document.getElementById("l");
var z=document.getElementById(id.substr(3));
tag.pop();
y.removeChild(z);
}
function gettag(id){
tag.push(id);
var f="";
for (var i=0;i<tag.length;i++)
{
var s="<label class='_tags' id='"+tag[i]+"'>"+tag[i]+"<span><a id='tag"+tag[i]+"' onclick='removetag(this.id)'>X</a></span> </label>";
f=f.concat(s);
}
document.getElementById("l").innerHTML=f;
}
<tr>
<td>Keyword :
</td>
<td><input type="text" id="multitag" name="multitag" onkeyup="getCategory()" onclick="close()">
<div id="l">
</div>
<div id="p" style="display: none;z-index:11;" >
</div>
</td>
</tr>