function ismaxlength(obj){
var mlength=obj.getAttribute? parseInt(obj.getAttribute("maxlength")) : ""
if (obj.getAttribute && obj.value.length>mlength)
obj.value=obj.value.substring(0,mlength)
}
function checkform ( form )
{

  // ** START **
  if (form.Name.value == "") {
    alert( "Please enter your Name." );
    return false ;
  }
  // ** END **
  // ** START **
  if (form.Email.value == "") {
    alert( "Please enter your Email address." );
    return false ;
  }
  // ** END **
  var iChars = "@#%^&*+=-[]\\\/{}|\":<>";

  for (var i = 0; i < form.Comments.value.length; i++) {
  	if (iChars.indexOf(form.Comments.value.charAt(i)) != -1) {
  	alert ("Your message has special characters. \nThese are not allowed.\n Please remove them and try again.");
  	return false;
  	}
  }

  // ** END **
  return true ;
}