function validate(formName, elementName, validationType){
	var valid = true;
	switch (validationType){
		case "req":
			var element = document.forms[formName].elements[elementName];
			if(element.value == ''){valid = false;}
			break;
		case "pwCheck":
			var elementNameArray = elementName.split('|');
			var element = document.forms[formName].elements[elementNameArray[0]];
			var element2 = document.forms[formName].elements[elementNameArray[1]];
			if(element.value != element2.value){valid = false;}
			break;
		case "emailCheck":
			var element = document.forms[formName].elements[elementName];
			if(!validateEmailv2(element.value)){valid = false;}
			break;
	}
	return valid;
}


function validateEmailv2(email)
{
// a very simple email validation checking. 
// you can add more complex email checking if it helps 
    var splitted = email.match("^(.+)@(.+)$");
    if(splitted == null) return false;
    if(splitted[1] != null )
    {
      var regexp_user=/^\"?[\w-_\.]*\"?$/;
      if(splitted[1].match(regexp_user) == null) return false;
    }
    if(splitted[2] != null)
    {
      var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
      if(splitted[2].match(regexp_domain) == null) 
      {
	    var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
	    if(splitted[2].match(regexp_ip) == null) return false;
      }// if
      return true;
    }
return false;
}