function valid_broch(f)
{
  var regex = /^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i;
  var check = regex.test(f.txt_email.value);
  if(f.txt_email.value=='')
  {
	  alert("Please Enter Your Email!");
	  f.txt_email.focus();
	  return false;
  }
  else if(check ==false)
  {
	  alert("Please Enter a Valid Email!");
	  f.txt_email.select();
	  return false;
  }	  	
}
	
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