function intOnly(i)
{
	if(i.value.length>0)
	{
		i.value = i.value.replace(/[^\d]+/g, '');
	}
}


function white_space(field)
{
	  fieldval = field.value;
	  var the_first_char = fieldval.charAt(0);
	 if(the_first_char == ' ')
	   {
          field.value = (field.value).replace(/^\s*|\s*$/g,'');
	   }
}

function validate(form_id,email) 
{
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   var address = document.forms[form_id].elements[email].value;
   if(reg.test(address) == false)
   {
      alert('Invalid Email Address');
      return false;
   }
   else
   {
	  return true;
   }
}

function checkform()
 {  
	      if(document.MBF_enquiry.first_name.value == '')
		   {
			      alert('Please Enter the First Name ');
				  document.MBF_enquiry.first_name.focus();
				   return false;
		   }
		  if(document.MBF_enquiry.last_name.value == '')
		   {
			      alert('Please Enter the Last Name ');
				  document.MBF_enquiry.last_name.focus();
				   return false;
		   }
		  if(document.MBF_enquiry.email.value == '')
		   {
			      alert('Please Enter the Email ');
				  document.MBF_enquiry.email.focus();
				   return false;
		   } 
		  if(document.MBF_enquiry.email.value != '')
		   {
			       var res = validate('MBF_enquiry','email');
				     if( res == false)
					  {
					      document.MBF_enquiry.email.value = '';
						  document.MBF_enquiry.email.focus();
						 return false;					     
					  }
		   }   
		return true;   
 }