JQuery动态加载获取当前元素下的值

$.ajax({
url:"api/mms/Home/GetSystemInfo",
type:"Post",
contentType: "application/json",
dataType:"json",
data:{},
success:function(datainfo){

//datainfo = eval(datainfo);
//var systemNameData = $.map(datainfo, function (obj) {
//    return obj.SystemName;
//});

//alert("成功");
//alert(datainfo);
//var json = $.parseJSON(datainfo);
//alert(json);

//for (var i = 0; i < json.length; i++) {
//    alert(json[i].SystemName);

//}
var json = eval(datainfo);
var html="";

$.each( json, function(index, content)
{
html += "<div ><li><a class=\"grid_3\"  ><img id=\"click_ms\" src=\"" + content.SystemImage + "\"/>" + content.SystemName + "</a></li><input style=\"displa:none\" value=\""+content.SystemCode+"\"/></div>";
});

$("#ulInfo").html(html);

},
error:function(){
alert("错误")
}

$("#ulInfo #click_ms").live("click", function () {
alert($(this).parent().parent().parent().find("input").attr("value"));
alert($("input").val());

// href=\""+content.SystemUrl+"\"
});