function $(o)
{ 
//获取对象
 if(typeof(o) == "string")
 return document.getElementById(o);
 return o;
}
function openBg(state){ //遮照打开关闭控制
 if(state == 1)
 {
  $("bg").style.display = "block";
    var h = document.body.offsetHeight > document.documentElement.offsetHeight ? document.body.offsetHeight : document.documentElement.offsetHeight;
  $("bg").style.height = h + "px";
 }
 else
 {
  $("bg").style.display = "none";
 } 
}

function openSelect(state)
{ //选择城市层关闭打开控制
 if(state == 1) 
 {
  $("selectItem").style.display = "block";
  $("selectItem").style.left = ($("bg").offsetWidth - $("selectItem").offsetWidth)/2 + "px";
  $("selectItem").style.top = document.body.scrollTop + 100 + "px";  
 }
 else
 {
  $("selectItem").style.display = "none";
 }
}

function open(id,state)
{ //显示隐藏控制
 if(state == 1)
 $(id).style.display = "block";
 $(id).style.diaplay = "none";
}

function makeSure()
{
 openBg(0);
 openSelect(0);
 
 var items = $("selectSub").getElementsByTagName("input");

 for(var i = 0 ; i < items.length ; i++)
 {
  if(items[i].checked == true)
  {
     $("selectcountry").value =  items[i].value;
  }
 }
}