var xmlobj=null;
function createajax()
{
		  if(window.XMLHttpRequest){ 
			xmlobj = new XMLHttpRequest(); 
		  }
		  else if(window.ActiveXObject){ 
			xmlobj = new ActiveXObject("Microsoft.XMLHTTP"); 
		  }
		  else { 
			alert("创建ajax失败"); 
			return;
		  }
}


var xmlobj1=null;
function createajax1()
{
		  if(window.XMLHttpRequest){ 
			xmlobj1 = new XMLHttpRequest(); 
		  }
		  else if(window.ActiveXObject){ 
			xmlobj1 = new ActiveXObject("Microsoft.XMLHTTP"); 
		  }
		  else { 
			alert("创建ajax失败"); 
			return;
		  }
}


function info_gopage(url,obj)
{
   location.href=url+"?page="+obj.value;
}



function check_search()
{
	if($("#search_text").val()==""){
		alert('搜索的关键词不能为空!');
		$("#search_text").focus();
		return false;
	}
	else
	{
		if($("#search_class").val()=="zx")
		{
			location.href='search_zx.php?keywords='+$("#search_text").val();
		}
		else
		{
			location.href='search_yw.php?keywords='+$("#search_text").val();
		}
	}
}


function search_zx_gopage(key,obj)
{
   location.href="search_zx.php?page="+obj.value+"&keywords="+key;
}


function search_yw_gopage(key,obj)
{
   location.href="search_yw.php?page="+obj.value+"&keywords="+key;
}


function check_user_point(ID,url,buy_nums)
{
	$.ajax({
	   type: "get",
	   url: "check_user_point.php",
	   data: "id="+ID+"&url="+url+"",
	   success: function(msg){
		  //alert(msg);
		  //return;
		  if(msg==1){
			  alert('积分不足,不可以兑换此礼品');
			  return;
		  }else if(msg==2){
			   add_car(ID,'website_lp',buy_nums)
		  }else{
			   alert('请先登录后再查看商品');
			   location.href="login.php?rurl="+msg;
	      }		  
	   }
	}); 
}



function add_car(id,table,buy_nums)
{
	$.ajax({
		   type: "post",
		   url: "add_car.php",
		   data: "id="+id+"&table="+table+"&buy_nums="+buy_nums+"",
		   success: function(msg){
			  //alert(msg);
			  location.href="shopcar.php";
		   }
		 });
}


function change_car_num(id,table,buy_nums,shopcar)
{
	$.ajax({
		   type: "post",
		   url: "add_car.php",
		   data: "id="+id+"&table="+table+"&buy_nums="+buy_nums+"&shopcar=1",
		   success: function(msg){
			  //alert(msg);
			  location.href="shopcar.php";
		   }
		 });
}