function psear(){
	if(document.psearch.keyword.value==""){
		alert("Please enter the keyword!");
		document.psearch.keyword.focus();
		return false;
		  }
		  return true;
	}
	
function CheckOrder()
{
  if(document.order.company.value=="")
   {
     alert("Please enter your company name!");
	 document.order.company.focus();
	 return false;
   } 
   if(document.order.addr.value=="")
   {
     alert("Please enter your company address!");
	 document.order.addr.focus();
	 return false;
   }
   if(document.order.man.value=="")
   {
     alert("Please enter your Contact Name!");
	 document.order.man.focus();
	 return false;
   }
     if(document.order.tel.value=="")
   {
     alert("Please enter your phone!");
	 document.order.tel.focus();
	 return false;
   }
    if(document.order.cpinfo.value=="")
   {
     alert("Please enter your product info!");
	 document.order.cpinfo.focus();
	 return false;
   }
 
     if(document.order.sendtime.value=="")
   {
     alert("Please enter your date!");
	 document.order.sendtime.focus();
	 return false;
   }
      if(document.order.paytype.value=="")
   {
     alert("Please enter your payment!");
	 document.order.paytype.focus();
	 return false;
   }
   if(document.order.email.value.length!=0)
  {
    if (document.order.email.value.charAt(0)=="." ||        
         document.order.email.value.charAt(0)=="@"||       
         document.order.email.value.indexOf('@', 0) == -1 || 
         document.order.email.value.indexOf('.', 0) == -1 || 
         document.order.email.value.lastIndexOf("@")==document.order.email.value.length-1 || 
         document.order.email.value.lastIndexOf(".")==document.order.email.value.length-1)
     {
      alert("Please enter the right Email Format！");
      document.order.email.focus();
      return false;
      }
   }
   
}
function CheckFeedback()
{
  if(document.feed.title.value=="")
   {
     alert("Please enter your title!");
	 document.feed.title.focus();
	 return false;
   } 
   if(document.feed.feedtype.value=="")
   {
     alert("Please enter your type");
	 document.feed.feedtype.focus();
	 return false;
   }
   if(document.feed.company.value=="")
   {
     alert("Please enter your company!");
	 document.feed.company.focus();
	 return false;
   }
     if(document.feed.tel.value=="")
   {
     alert("Please enter your phone!");
	 document.feed.tel.focus();
	 return false;
   }
   if(document.feed.email.value.length!=0)
  {
    if (document.feed.email.value.charAt(0)=="." ||        
         document.feed.email.value.charAt(0)=="@"||       
         document.feed.email.value.indexOf('@', 0) == -1 || 
         document.feed.email.value.indexOf('.', 0) == -1 || 
         document.feed.email.value.lastIndexOf("@")==document.feed.email.value.length-1 || 
         document.feed.email.value.lastIndexOf(".")==document.feed.email.value.length-1)
     {
      alert("Please enter the right Email Format！");
      document.feed.email.focus();
      return false;
      }
   }
 	 
}

function msgchk()
{
  if(document.msg.name.value=="")
   {
     alert("Please enter the title!");
	 document.msg.name.focus();
	 return false;
   } 
   if(document.msg.content.value=="")
   {
     alert("Please enter the question");
	 document.msg.content.focus();
	 return false;
   }
   if(document.msg.email.value.length!=0)
  	{
    if (document.msg.email.value.charAt(0)=="." ||        
         document.msg.email.value.charAt(0)=="@"||       
         document.msg.email.value.indexOf('@', 0) == -1 || 
         document.msg.email.value.indexOf('.', 0) == -1 || 
         document.msg.email.value.lastIndexOf("@")==document.msg.email.value.length-1 || 
         document.msg.email.value.lastIndexOf(".")==document.msg.email.value.length-1)
     {
      alert("Please enter the right Email Format！");
      document.msg.email.focus();
      return false;
      }
   }
    if(document.msg.code.value!=document.msg.recode.value)
   {
     alert("Please enter the right code");
	 document.msg.code.focus();
	 return false;
   }
}

function winopen(id) 
  {window.open("product_show.asp?id="+id,"","height=400, width=500, top=10, left=150, toolbar=no, menubar=no, scrollbars=yes,resizable=no,location=no, status=no");

}

function userchk(){
	if(document.userlogin.uid.value==""){
		alert("用户名不能为空!");
		document.userlogin.uid.focus();
		return false;
		  }
		  
	if(document.userlogin.pwd.value==""){
		alert("密码不能为空!");
		document.userlogin.pwd.focus();
		return false;
		  }
	}



function CheckReg()
{
  if(document.reg.LoginName.value=="")
   {
     alert("用户名不能为空!");
	 document.reg.LoginName.focus();
	 return false;
   } 
   if(document.reg.psw.value=="")
   {
     alert("密码不能为空!");
	 document.reg.psw.focus();
	 return false;
   } 
   if(document.reg.RealName.value=="")
   {
     alert("姓名不能为空!");
	 document.reg.RealName.focus();
	 return false;
   } 
   if(document.reg.email.value.length!=0)
  {
    if (document.reg.email.value.charAt(0)=="." ||        
         document.reg.email.value.charAt(0)=="@"||       
         document.reg.email.value.indexOf('@', 0) == -1 || 
         document.reg.email.value.indexOf('.', 0) == -1 || 
         document.reg.email.value.lastIndexOf("@")==document.reg.email.value.length-1 || 
         document.reg.email.value.lastIndexOf(".")==document.reg.email.value.length-1)
     {
      alert("Email地址格式不正确！");
      document.reg.email.focus();
      return false;
      }
   }
 	 
}

function showpic(pic,imgfile) {
if (imgfile.value){
pic.src='img/'+imgfile.value;
pic.style.display="";
pic.border=1;
}
}
function dispic(pic) {
pic.style.display="none";
}