function signUp()
{                      
	var email = document.mailform["YMLP0"].value;
	var zip = document.mailform["YMLP1"].value;
	
	if ( email == "" || email == document.mailform["YMLP0"].defaultText)    
	{
		setStatus ("Please enter an e-mail address");
		return;
	}
	 else if ( !validate( email ) )
	{          
		setStatus ("Please enter a valid e-mail.")
		return;
	}                
    document.mailform.submit();
}
function setStatus( $s )
{
 	document.getElementById("mail-message").innerHTML=$s;
   
}
function validate(address) {
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   if(reg.test(address) == false) {
      return false;
   }  
   return true;
}