jquery.autocomplete.js
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//mod by 2355244921 20130708 前端性能优化
var autoComplete=function(params){
var $target=$("#"+params.target);
var $input=$("#"+params.input);
var $container=$("#"+params.container);
var currentAjaxs=[];
$input.attr('autocomplete','off');
var doAutocomplete=function(){
var oldv=$input.val();
var autoAC=function(){
if(oldv!=$input.val()){
var mAjax=$.ajax({type:'post',url:params.url,data:{'key':$input.val()},dataType:"text",
success: function(data){
var json=eval("(" + data + ")");
var str_html=[];
for(i=0;i<json.length;i++){
str_html.push(params.formatItem(json[i],i));
}
$container.html(str_html.join(''));
var mLi=$container.find('li');
mLi.css("cursor","pointer");
mLi.click(function(mEvent){
var i=mEvent.currentTarget.getAttribute("i");
params.result(json[i]);
});
params.callback();
}
});
currentAjaxs.push(mAjax);
if(currentAjaxs.length>2){
var tempA=currentAjaxs.splice(1,currentAjaxs.length-2);
for(var j=1;j<tempA.length-2;j++){
tempA[j].abort();
}
}
}
oldv=$input.val();
setTimeout(function(){
autoAC();
},params.delay);
}
autoAC();
};
doAutocomplete();
}