function validateEmail(obj){
var emailRegEx = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
str =obj.value;
if(str!="")
 {
	if(str.match(emailRegEx))
	{

	}
	else
 	{
    	 alert("Please enter the valid email id."); 
	 	obj.focus();
       
    }
  }
}
	
	function validateForm()
	{
		if(document.frmBanner.month.value=='')
		{
			alert("Please select a month.");
			document.frmBanner.month.focus();
			return false;
		}
		if(document.frmBanner.day.value=='')
		{
			alert("Please select a day.");
			document.frmBanner.day.focus();
			return false;
		}
		if(document.frmBanner.year.value=='')
		{
			alert("Please select a year.");
			document.frmBanner.year.focus();
			return false;
		}
		if(document.frmBanner.txtCompany.value=='')
		{
			alert("Please enter the company name.");
			document.frmBanner.txtCompany.focus();
			return false;
		}
		if(document.frmBanner.txtName.value==''){
			alert("Please enter the first name.");
			document.frmBanner.txtName.focus();
			return (false);
		}
		if(document.frmBanner.txtSurname.value==''){
			alert("Please enter the  last name.");
			document.frmBanner.txtSurname.focus();
			return (false);
		}
		if(document.frmBanner.txtAddress.value==''){
			alert("Please enter the address.");
			document.frmBanner.txtAddress.focus();
			return (false);
		}
		
		if(document.frmBanner.txtCity.value==''){
			alert("Please enter the city.");
			document.frmBanner.txtCity.focus();
			return (false);
		}
		
		
		if(document.frmBanner.txtState.value==''){
			alert("Please enter the state.");
			document.frmBanner.txtState.focus();
			return (false);
		}
		
		if(document.frmBanner.txtZipcode.value==''){
			alert("Please enter the day time zip code.");
			document.frmBanner.txtZipcode.focus();
			return (false);
		}
		
		if(document.frmBanner.txtEmail.value==''){
			alert("Please enter your valid email address.");
			document.frmBanner.txtEmail.focus();
			return (false);
		}
		
		
		if(document.frmBanner.txtEmail.value!='')
		 {
			var emailRegEx = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
			str =document.frmBanner.txtEmail.value;
			if(str!="")
			 {
				if(str.match(emailRegEx))
				{
			
				}
				else
				{
					 alert("Please enter the valid email id."); 
					document.frmBanner.txtEmail.focus();
				   return false;
				}
			  }
		 }
		
		

		if(document.frmBanner.txtInfo.value=='')
		{
			alert("Please select a txtInfo.");
			document.frmBanner.txtInfo.focus();
			return false;
		}
		
		if(document.frmBanner.txtNotes.value==''){
			alert("Please enter your comments or questions.");
			document.frmBanner.txtNotes.focus();
			return (false);
		}


return (true);
	}
	
	
	
	
	
	
	
	
	
	
	
	
	
function IsNumeric(sText)
{
   var ValidChars = "0123456789+-.";
   var IsNumber=true;
   var Char;
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;		 
         }
      }
   return IsNumber;
}

	function validateFormPayment(){
			

		
		if(document.payform.txtfirst_name.value=='')
		{
			alert("Please enter the  first  name. ");
			document.payform.txtfirst_name.focus();
			return false;
		}
		
		if(document.payform.txtfirst_name.value==''){
			alert("Please enter the  first  name. ");
			document.payform.txtfirst_name.focus();
			return false;
		}

		
		if(document.payform.txtlast_name.value==''){
			alert("Please enter the last name. ");
			document.payform.txtlast_name.focus();
			return false;
		}
		if(document.payform.txtaddress.value==''){
			alert("Please enter the  address. ");
			document.payform.txtaddress.focus();
			return false;
		}
		if(document.payform.txtcity.value==''){
			alert("Please enter the  city. ");
			document.payform.txtcity.focus();
			return false;
		}
		
		if(document.payform.txtstate.value==''){
			alert("Please select a state. ");
			document.payform.txtstate.focus();
			return false;
		}
		
		if(document.payform.txtzip.value=='')
		{
			
			alert("Please enter the zip code. ");
			document.payform.txtzip.focus();
			return false;
			
		}
		
		
		if (!IsNumeric(document.payform.txtzip.value)) 
   			{ 
      			alert('Please enter a correct zip code.') 
      			document.payform.txtzip.focus();
     			 return false; 
     	 }
		
		if(document.payform.txtproduct.value=='')
		{
			
			alert("Please select the product. ");
			document.payform.txtproduct.focus();
			return false;
			
		}
		
		
		if(document.payform.txtAmount.value==''){
			alert("Please enter your Amount.");
			document.payform.txtAmount.focus();
			return (false);
		}
		
		
		 if(document.payform.txtemail.value==''){
			alert("Please enter your email address.");
			document.payform.txtemail.focus();
			return (false);
		}
		
		
		if(document.payform.txtemail.value!="")
		 {
			var emailRegEx = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
			str =document.payform.txtemail.value;
			if(str!="")
			 {
				if(str.match(emailRegEx))
				{
			
				}
				else
				{
					 alert("Please enter the valid email id."); 
					document.payform.txtemail.focus();
				   return false;
				}
			  }
		 }
		
		
		
		
	
	
	
	
		 if(document.payform.card_type.value==''){
			alert("Please select the name of card.");
			document.payform.card_type.focus();
			return false;
		}
		
		
		
		
	 if(document.payform.cc_number.value==''){
			alert("Please enter the card number.");
			document.payform.cc_number.focus();
			return (false);
		}
		
		
		
		if (!IsNumeric(document.payform.cc_number.value)) 
   			{ 
      			alert('Please enter a correct card number.') 
      			document.payform.txtzip.focus();
     			 return false; 
     	 }
		
		
		if(document.payform.expmonth.value==''){
			alert("Please select exp. month.");
			document.payform.expmonth.focus();
			return (false);
		}
		
		if(document.payform.expyear.value==''){
			alert("Please select exp. year.");
			document.payform.expyear.focus();
			return (false);
		}
		
		if(document.payform.cvv_code.value==''){
			alert("Please enter the ccv.");
			document.payform.cvv_code.focus();
			return (false);
		}
		
	
		if (!IsNumeric(document.payform.cvv_code.value)) 
   			{ 
      			alert('Please enter a correct ccv.') 
      			document.payform.txtzip.focus();
     			 return false; 
     	 }
	
		return true;
	}