function getScreen_Width()
{
   var width=screen.width;
   var screen_div="";
   if(document.getElementById("screen")!=null)
   {
      screen_div=document.getElementById("screen");
      if(width==800)
      {
         alert("建议使用分辨率为1024*756!");
      }
      if(width==1024)
      {
         screen_div.style.marginLeft="20px";
      }
      if(width==1152)
      {
         screen_div.style.marginLeft="85px";
         document.getElementById("apDiv1").style.left="370px";
      }
      if(width==1280)
      {
         screen_div.style.marginLeft="150px";
         document.getElementById("apDiv1").style.left="430px";         
      }
   }
}

function drawImg(img,value)
{  
   if(img.width>img.height || img.width==img.height)
   {
      img.width=value;
   }else
   {
      img.height=value;
   }
}

function doSubmit()
{
   var name=document.getElementById("txt_name");   
   var phone=document.getElementById("txt_phone");
   var email=document.getElementById("txt_email");
   var addr=document.getElementById("txt_addr");
   var xx=document.getElementById("text_xx");   
   
   if(name.value=="")
   {
      alert("请输入您的姓名。");
      name.focus();
      return;
   }
   else
   {
      if(phone.value=="")
      {
         alert("请输入您的电话。");
         phone.focus();
         return;
      }else
      {
         if(email.value=="")
         {
            alert("请输入您的Email。");
            email.focus();
            return;
         }
         else
         {
            if(addr.value=="")
            {
                alert("请输入您的地址。");
                addr.focus();
                return;
            }else
             {
                document.forms[0].action="Default.aspx";
                document.forms[0].submit();
             }
         }
         
      }
   }
}

function reset()
{
   var name=document.getElementById("txt_name");
   var phone=document.getElementById("txt_phone");
   var email=document.getElementById("txt_email");
   var xx=document.getElementById("text_xx");
   var addr=document.getElementById("txt_addr");
   name.value="";
   phone.value="";
   email.value="";
   xx.value="";
   document.getElementById("sel_sex").selectedIndex=0;
   addr.value="";
}