确认消息不提示

Ok so Im trying to prompt the user the standard are you sure on a button click. The method within controller gets hit, but the prompt box doesn't load up.

I am referencing

<script src="~/Scripts/jquery.unobtrusive-ajax.min.js" type="text/javascript" ></script>@{

Code from my view:

@using (Ajax.BeginForm("Delete", "Account", new AjaxOptions() { Confirm = "Are you sure", UpdateTargetId = "refresh", InsertionMode = InsertionMode.Replace}, new { @id = "refresh" }))
{
      ........
     <p><button type="submit" name ="Del">Delete</button></p>
    }
}

In Firebug I get two errors on the page.

ReferenceError: jQuery is not defined   

 (function(a){var b="unobtrusiveAjaxClick",g="unobtrusiveValidation";function c(d,b){var a=window,c=(d||"").split(".");while(a&&c.length)a=a[c.shift()];if(typeof a==="function")return a;b.push(d);return Function.constructor.apply(null,b)}function d(a){return a==="GET"||a==="POST"}function f(b,a){!d(a)&&b.setRequestHeader("X-HTTP-Method-Override",a)}function h(c,b,e){var d;if(e.indexOf("application/x-javascript")!==-1)return;d=(c.getAttribute("data-ajax-mode")||"").toUpperCase();a(c.getAttribute("data-ajax-update")).each(function(f,c){var e;switch(d){case"BEFORE":e=c.firstChild;a("<div />").html(b).contents().each(function(){c.insertBefore(this,e)});break;case"AFTER":a("<div />").html(b).contents().each(function(){c.appendChild(this)});break;default:a(c).html(b)}})}function e(b,e){var j,k,g,i;j=b.getAttribute("data-ajax-confirm");if(j&&!window.confirm(j))return;k=a(b.getAttribute("data-ajax-loading"));i=b.getAttribute("data-ajax-loading-duration")||0;a.extend(e,{type:b.getAttribute("data-ajax-method")||undefined,url:b.getAttribute("data-ajax-url")||undefined,beforeSend:function(d){var a;f(d,g);a=c(b.getAttribute("data-ajax-begin"),["xhr"]).apply(this,arguments);a!==false&&k.show(i);return a},complete:function(){k.hide(i);c(b.getAttribute("data-ajax-complete"),["xhr","status"]).apply(this,arguments)},success:function(a,e,d){h(b,a,d.getResponseHeader("Content-Type")||"text/html");c(b.getAttribute("data-ajax-success"),["data","status","xhr"]).apply(this,arguments)},error:c(b.getAttribute("data-ajax-failure"),["xhr","status","error"])});e.data.push({name:"X-Requested-With",value:"XMLHttpRequest"});g=e.type.toUpperCase();if(!d(g)){e.type="POST";e.data.push({name:"X-HTTP-Method-Override",value:g})}a.ajax(e)}function i(c){var b=a(c).data(g);return!b||!b.validate||b.validate()}a("a[data-ajax=true]").live("click",function(a){a.preventDefault();e(this,{url:this.href,type:"GET",data:[]})});a("form[data-ajax=true] input[type=image]").live("click",function(c){var g=c.target.name,d=a(c.target),f=d.parents("form")[0],e=d.offset();a(f).data(b,[{name:g+".x",value:Math.round(c.pageX-e.left)},{name:g+".y",value:Math.round(c.pageY-e.top)}]);setTimeout(function(){a(f).removeData(b)},0)});a("form[data-ajax=true] :submit").live("click",function(c){var e=c.target.name,d=a(c.target).parents("form")[0];a(d).data(b,e?[{name:e,value:c.target.value}]:[]);setTimeout(function(){a(d).removeData(b)},0)});a("form[data-ajax=true]").live("submit",function(d){var c=a(this).data(b)||[];d.preventDefault();if(!i(this))return;e(this,{url:this.action,type:this.method||"GET",data:c.concat(a(this).serializeArray())})})})(jQuery);


jquery....min.js (line 5)
ReferenceError: jQuery is not defined


}(jQuery));

im not too sure whats going on here, any help is greatly appreciated.

Instead of referencing your script with the script tags. Reference them in the BundleConfig.cs

    public static void RegisterBundles(BundleCollection bundles)
    {
        bundles.Add(new ScriptBundle("~/bundles/jquery").Include(
                    "~/Scripts/2013.2.611/jquery-1.7.1.min.js"));
    }