var currentSize;

        SetDefaultStatus();


        CalcTotal();
        
        function GoToCart(){
            if(Utils.isEmpty(currentSize)){
                alert("请选择尺码!");
                return false;
            }
            
             //alert(Utils.$("ctl00_Main__txtNum").value <= 0);
             //if(Utils.$("ctl00_Main__txtNum").value <= 0){
              //  alert("购物数量不可以小于0!");
               // return false;
             //}
           return true;
        }
        function SetSizeFocus(obj)
        {
            if (obj.className == "pro_link") {
               obj.className = "pro_visited";
               Utils.$("sizeblock").innerHTML = Utils.$(obj.id + "size").innerHTML
               if(!Utils.isEmpty(currentSize)) 
                    (Utils.$(currentSize)).className = "pro_link";
              currentSize = obj.id;
              Utils.$("ctl00_ContentPlaceHolder1__txtCommodityid").value = currentSize;
           }
        }

        function SetDefaultStatus() {
            if (!Utils.isEmpty(ccode)) {
                Utils.$(ccode).className = "pro_visited";

            }
            if (!Utils.isEmpty(ccid)) {
                SetSizeFocus(Utils.$(ccid));
            }

        }
        
        function CalcTotal(){
            var num = Utils.$("ctl00_ContentPlaceHolder1__txtNum").value;
            var price = Utils.$("ctl00_ContentPlaceHolder1__txtPrice").value
            Utils.$("totalcount").innerHTML = num * price; 
        }
        
        function ValidQuantity(obj){
             if(Utils.isEmpty(currentSize)){
                obj.value="1";
                alert("请选择尺码!");
                return;
             }
             else if(Utils.$(currentSize).getAttribute("Num")<obj.value){
                alert("超过最大购买量!");
                obj.value = Utils.$(currentSize).getAttribute("Num");
                return;
             }
             else if (obj.value <=0){
                obj.value = 1;
                return;
             }
        }

        function SetEffectSource(bigpic, smallpic,obj) {
            Utils.$('ctl00_ContentPlaceHolder1__imgPicPreview').setAttribute("jqimg", bigpic);
            Utils.$('ctl00_ContentPlaceHolder1__imgPicPreview').src = smallpic;
            obj.className = "currentImg panel";
        }