function clearbox() {
document.Form1.companyname.value="";
document.Form1.contactperson.value="";
document.Form1.contacttel.value="";
document.Form1.contactfax.value="";
document.Form1.contactemail.value="";
document.Form1.contactadd.value="";
document.Form1.contacturl.value="";
document.Form1.feedbackdesc.value="";
}

function check_feedbackform()
{
   if(document.form1.SubjectTitle.value=="")
	{
		alert("Please enter Subject.");
		document.form1.SubjectTitle.select();
		return false;
	}
if(document.form1.Message.value=="")
	{
		alert("Please enter Inquiry  Message.");
		document.form1.Message.select();
		return false;
	}
	    if(document.form1.Name.value=="")
	{
		alert("Please enter your Name.");
		document.form1.Name.select();
		return false;
	}
	if(document.form1.Company.value=="")
	{
		alert("Please enter  Your  Company.");
		document.form1.Company.select();
		return false;
	}
	if(document.form1.Country.value=="")
	{
		alert("Please enter  Your  Country/Territoy.");
		document.form1.Country.select();
		return false;
	}
	
	
	if(document.form1.Email.value=="")
	{
		alert("Please enter Business  E-mail.");
		document.form1.Email.select();
		return false;
	}
	if(document.form1.Email.value.length !=0)
   {
	  	   
   if(/^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/.exec(document.form1.Email.value)==null)
     {
      alert("Email Error!");
      document.form1.Email.select();
      return false;
     } 
   }
	return true;
}


function check_feedbackform2()
{
 if(document.form1.Subject.value=="")
	{
		alert("Please enter Subject.");
		document.form1.Subject.select();
		return false;
	}
if(document.form1.FeedbackDesc.value=="")
	{
		alert("Please enter Content.");
		document.form1.FeedbackDesc.select();
		return false;
	}
	    if(document.form1.CompanyName.value=="")
	{
		alert("Please enter Your Company.");
		document.form1.CompanyName.select();
		return false;
	}
	
	
	if(document.form1.ContactEmail.value=="")
	{
		alert("Please enter E-mail.");
		document.form1.ContactEmail.select();
		return false;
	}
	if(document.form1.ContactEmail.value.length !=0)
   {
	  	   
   if(/^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/.exec(document.form1.ContactEmail.value)==null)
     {
      alert("Email Error!");
      document.form1.ContactEmail.select();
      return false;
     } 
   }
  if(document.form1.ContactTel.value=="")
	{
		alert("Please enter Tepephone Number.");
		document.form1.ContactTel.select();
		return false;
	}
	  if(document.form1.ContactFax.value=="")
	{
		alert("Please enter Fax Number.");
		document.form1.ContactFax.select();
		return false;
	}
	
	if(document.form1.VerificationCode.value=="")
	{
		alert("Please enter Verification Code.");
		document.form1.VerificationCode.select();
		return false;
	}
	
  
	return true;
}



function check_signin()
{
 if(document.form1.username.value=="")
	{
		alert("请输入用户名");
		document.form1.username.select();
		return false;
	}
	if(document.form1.pwd.value=="")
	{
		alert("请输入密码");
		document.form1.pwd.select();
		return false;
	}
	
	return true;	

}

function check_keyword()
{
	if(document.form1.left_mainmenu$keyword.value==""||document.form1.left_mainmenu$keyword.value=="Product Search...")
	{
		alert("Please enter keyword!");
		document.form1.left_mainmenu$keyword.select();
		return false;
	}
	if(document.form1.left_mainmenu$keyword.value.length >30)
	{
		alert("1-30 length");
		document.form1.left_mainmenu$keyword.value="";
		document.form1.left_mainmenu$keyword.select();
		
		return false;
		
	}
	
	return true;
}
function check_feedbackform3()
{

	
	
	
	if(document.form1.contactemail.value=="")
	{
		alert("Please enter email.");
		document.form1.contactemail.select();
		return false;
	}
	if(document.form1.PassWord.value=="")
	{
		alert("Please enter password.");
		document.form1.PassWord.select();
		return false;
	}
	
	if(document.form1.contactpersonfirst.value=="" || document.form1.contactpersonlast.value=="")
	{
		alert("Please enter your name.");
		document.form1.contactpersonfirst.select();
		return false;
	}
	if(document.form1.tecountrycode.value=="" || document.form1.teareacode.value=="" || document.form1.tetelnumber.value=="")
	{
		alert("Please enter business number.");
		document.form1.tecountrycode.select();
		return false;
	}
	if(document.form1.contactemail.value.length !=0)
   {
	  	   
   if(/^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/.exec(document.form1.contactemail.value)==null)
     {
      alert("Email Error!");
      document.form1.contactemail.select();
      return false;
     } 
     if(document.form1.feedbackdesc.value=="")
	{
		alert("Please enter Message.");
		document.form1.feedbackdesc.select();
		return false;
	}
	 if(document.form1.PassWord.value!==document.form1.Textbox2.value||document.form1.PassWord.value=="")
	{
		alert("Please enter password.");
		document.form1.PassWord.select();
		return false;
	}
	
   }
	return true;
}