下面是我正在使用的jquery自动建议插件的代码。我想知道我需要做些什么来实现多个实例支持。 （在同一页面上自动提取多个表格。谢谢。
(function($){
$.fn.extend({
autoSuggest : function(options){
var defaults = {
ajaxFilePath : "",
ajaxParams : "",
autoFill : false,
iwidth : "auto",
opacity : "0.9",
ilimit : "10",
idHolder : "",
match : "starts"
};
options = $.extend(defaults, options);
var ajaxFilePath = options.ajaxFilePath;
var ajaxParams = options.ajaxParams;
var autoFill = options.autoFill;
var width = options.iwidth;
var opacity = options.opacity;
var limit = options.ilimit;
var idHolder = options.idHolder;
var match = options.match;
return this.each(function() {
var obj = $(this);
obj.keyup(function(event){
var p = obj;
var offset = p.offset();
var keyword = obj.val();
if(keyword.length)
{
if(event.keyCode != 40 && event.keyCode != 38 && event.keyCode != 13)
{
if(ajaxFilePath != "")
{
$.ajax({
type: "POST",
url: ajaxFilePath,
data: "data="+keyword+"&limit="+limit+"&match="+match+"&"+ajaxParams+"&getId=1",
success: function(responce){
if(responce != 0)
{
var vals = responce.split("|");
if(vals.length)
{
optionList = "<ul class=\"list\">";
for(i=0;i<vals.length;i++)
{
valuenid = vals[i].split("-");
myText = valuenid[1];
myId = valuenid[0];
// trim string to remove extra white spaces around the text
myText = myText.replace(/^\s+|\s+$/g,"");
if(match == "starts")
// check if string starts with given characters
myText = myText.replace( myText.match("^"+keyword), '<span class="highlighted">'+keyword+'</span>');
else if(match == "ends")
//alert(myText.replace(/(.*)keyword/, "<b>hi</b>"));
myText = myText.replace (new RegExp( keyword + '$'), '<span class="highlighted">'+keyword+'</span>');
else if(match == "contains")
myText = myText.replace( new RegExp(keyword, "i" ), '<span class="highlighted">'+keyword+'</span>');
if(idHolder != "" && idHolder != null)
optionList += "<li><a href=\"javascript:void(0);\" id=\""+myId+"\">"+myText+"</a></li>";
else
optionList += "<li><a href=\"javascript:void(0);\">"+myText+"</a></li>";
}
optionList += "</ul>";
}
if($(".ajax_response").html() == null)
{
var id = obj.attr("id");
// initialization
$(".dropdown").append("<div class='ajax_response'></div>")
.css("left",parseInt($("#"+id).offset().left))
.css("top",parseInt(offset.top + obj.height() + 3))
.css("opacity",opacity)
.html(optionList).css("display","block");////REMEMBER
// set responce div width
if(width == "auto")
$(".ajax_response").css("width",parseInt(obj.width()) + 2);
else
$(".ajax_response").css("width",parseInt(width + 2));
}
else
$(".ajax_response").html(optionList).css("display","block");
}
else
$(".list").css("display","none");
}
});
}
else
alert("Ajax file path not provided");
}
else
{
$(".list li .selected").removeClass("selected");
switch (event.keyCode)
{
case 40:
{
found = 0;
$(".list li").each(function(){
if($(this).attr("class") == "selected")
found = 1;
});
if(found == 1)
{
var sel = $(".list li[class='selected']");
// check if his is a last element in the list
// if so then add selected class to the first element in the list
if(sel.next().text() == "")
$(".list li:first").addClass("selected");
else
sel.next().addClass("selected");
// remove class selected from previous item
sel.removeClass("selected");
}
else
$(".list li:first").addClass("selected");
}
break;
case 38:
{
found = 0;
$(".list li").each(function(){
if($(this).attr("class") == "selected")
found = 1;
});
if(found == 1)
{
var sel = $(".list li[class='selected']");
// check if his is a last element in the list
// if so then add selected class to the first element in the list
if(sel.prev().text() == "")
$(".list li:last").addClass("selected");
else
sel.prev().addClass("selected");
// remove class selected from previous item
sel.removeClass("selected");
}
else
$(".list li:last").addClass("selected");
}
break;
case 13:
str = $(".list li[class='selected']").text();
obj.val(str);
// store id of the selected option
if(idHolder != "" && idHolder != null)
$("#"+idHolder).val($(".list li[class='selected'] a").attr("id"));
$(".list").hide();
break;
}
// if autoFill option is true then fill selected value in textbox
if(autoFill)
{
str = $(".list li[class='selected']").text();
obj.val(str);
}
}
}
else
// if there is no character in the text field then remove the suggestion box
$(".list").hide();
});
// prevent form submission on enter key press
//obj.keypress(function(event){
//if(event.keyCode == "13")
// return false;
//});
$(".list li").live("mouseover",function () {
$(".list li[class='selected']").removeClass("selected");
$(this).addClass("selected");
// if autoFill option is true then fill selected value in textbox
if(autoFill)
{
str = $(".list li[class='selected']").text();
obj.val(str);
}
});
$(".list li").live("click",function () {
str = $(".list li[class='selected']").text();
obj.val(str);
// store id of the selected option
if(idHolder != "" && idHolder != null)
$("#"+idHolder).val($("li[class='selected'] a").attr("id"));
$(".list").hide();
});
$(document).click(function(){
if($(".list").css("display") == "block")
$(".list").hide();
});
$(document).keyup(function(event){
if(event.keyCode == 9)
{
str = $(".list li[class='selected']").text();
obj.val(str);
// store id of the selected option
if(idHolder != "" && idHolder != null)
$("#"+idHolder).val($(".list li[class='selected'] a").attr("id"));
$(".list").hide();
}
});
});
}
});
}) (jQuery);