//登录提示
	function MessageBox_LoginFirst(){
		alert ("请你先登录酷得软件！");
		window.open("user_login.php","_self");
	}
	//------------
	
	//购物车
	function ShoppingCart_AddItem(product_license_id){
		window.open("ShoppingCart_AddItem.php?product_license_id="+product_license_id,"_blank");
	}
	
	function ShoppingCart_ClearCart(){
		window.open("ShoppingCart_ClearCart.php","_self");
	}
	
	function ShoppingCart_SaveItemNumber(product_license_id){
		var str = document.getElementById(product_license_id).value;
		if (str.length<1){
			alert ("Please input number"); 
			exit;
		}
		window.open("ShoppingCart_SaveItemNumber.php?product_license_id="+product_license_id+"&number="+str,"_self");
	}
	
	function ShoppingCart_DeleteItem(product_license_id){
		window.open("ShoppingCart_DeleteItem.php?product_license_id="+product_license_id,"_self");
	}
	
	function ShoppingCart_NextStep(sum){
		if (sum==undefined){
			alert ("购物车为空！");
			exit;
		}
		window.location='shoppingcart_next.php';
	}
	
	function ShoppingCart_CheckDiskService(){
		
		var str=document.getElementById("diskservice").checked;
		window.open("ShoppingCart_CheckDiskService.php?diskservice="+str,"_self");
	
	}
	function ShoppingCart_CheckTax(){
		
		var str=document.getElementById("tax").checked;
		window.open("ShoppingCart_CheckTax.php?tax="+str,"_self");
	
	}
	//---------------------