Dynamic Content with Ajax not show

Question

Hi i am making a website & want to use the dynamic content effect as the following reference : http://www.diftype.com/

after copied the source, it's work for the fade in effect, but can't call the entry to the content area.

i checked the "get_entry.php" file, which is a empty, so i think the most problems is from the "jquery.corefunctions.js"

so i post the detail as below, please help to fix it, thanks a lot!!

jQuery.extend({

//content
firstLoad: function(id) {
    if(!location.hash && id) {
        $.sendRequest(id);
    }
},

contentTarget: undefined,

latestLoad: undefined,

sendRequest: function(id) {
    if(!id) return;
    id = decodeURIComponent(id);
    if(id == jQuery.latestLoad) return;
    if(id.search("tag-") < 0) jQuery.contentLoad(id);
    else jQuery.tagClick(id);
},

contentLoad: function(id) {
    $(".link-text, .page-link").removeClass("link-active");
    $(".page-link[href='#"+id+"']").addClass("link-active");
    $("#thumb"+id+" .link-text,#list"+id+" .link-text").addClass("link-active");

    jQuery.contentTarget.animate({"opacity":0},200);

    $.ajax({
        type: "get",
        url: "core/functions/get_entry.php",
        data: "id="+id,
        datatype: "php",
        success: function(data){
            $("#load-content").show();
            $('php').animate({scrollTop:0}, 200);
            jQuery.latestLoad = id;
            jQuery.contentInsert(data);
        }
    });
},

contentInsert: function(data) {
    var id = jQuery.contentTarget.attr("id");
    jQuery.contentTarget.html(data);

    $("#close-entry").click(function(){
        $(".link-text, .page-link").removeClass("link-active");
        jQuery.latestLoad = "";
        $("#load-content").html("");
        $("#load-content").hide();
    });

    jQuery.contentTarget.animate({"opacity":1},200);
},

//tags
tagArray: undefined,

tagClick: function(id) {
    var tag,arr,ex;

    $(".tag-link.link-active").each(function(){
        $(this).removeClass("link-active");                              
    });

    $(".tag-link[href='#"+id+"']").each(function(){
        $(this).addClass("link-active");
        tag = $(this).attr("name");
    });

    arr = jQuery.tagArray[tag];
    if(!arr) arr = [];

    $(".entry-link").each(function() {
        ex = false;

        for (var i = 0;i<arr.length;i++){
            var e_id = $(this).attr("id").replace(/list/,'').replace(/thumb/,'');
            if( e_id == arr[i] ) ex = true;
        }

        if(ex) $(this).fadeTo(200,1.0);
        else $(this).fadeTo(200,0.25);
    });
},

tagAll: function() {
    $("#load-content").hide();
    $.latestLoad = "";
    $(".link-active").each(function() {
        $(this).removeClass("link-active");
    });

    $(".entry-link").each(function() {
        $(this).fadeTo(200,1.0);
    });
}

});