function HandleImgError(imageObj) 
{ 
  imageObj.src = "http://www.shopping-wire.co.uk/images/resize.gif"; 
}
  function checklogin(){
  	email = document.login.username.value
  	pwd = document.login.password.value
	var re  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;

  if (email==""){
     	alert("Please fill in the email box.");
  	document.login.username.focus();
  	flag = 1;
  	return false; }
    if (pwd==""){
     	alert("Please fill in the Password box.");
  	document.login.password.focus();
  	flag = 1;
  	return false; }
    if(re.test(email) ){
	    return true;
	}
	else{
	    if(!email.length)
	    email = '< >';
	    alert(email + ' is not a valid email');
	    return false;
	}		  
  }