var errored = new Array();
var hasError = false;
function Validator(frmname)
{
  this.formobj=document.forms[frmname];
	if(!this.formobj){
	  alert("BUG: couldnot get Form object "+frmname);
	return;}
	if(this.formobj.onsubmit){
	 this.formobj.old_onsubmit = this.formobj.onsubmit;
	 this.formobj.onsubmit=null;
	}else{
	 this.formobj.old_onsubmit = null;}
	 this.formobj.onsubmit=form_submit_handler;
	 this.addValidation = add_validation;
	 this.setAddnlValidationFunction=set_addnl_vfunction;
	 this.clearAllValidations = clear_all_validations;
}
function set_addnl_vfunction(functionname){
  this.formobj.addnlvalidation = functionname;
}
function clear_all_validations()
{
	for(var itr=0;itr < this.formobj.elements.length;itr++){
		this.formobj.elements[itr].validationset = null;}
}
function form_submit_handler()
{
	if(hasError){
		for(i in errored){
			errored[i].style.border = "1px #CCCCCC solid";
		}
	}
	hasError = false;
	errored.length = 0;
	ret2 = true;
	for(var itr=0;itr < this.elements.length;itr++){
		if(this.elements[itr].validationset && !this.elements[itr].validationset.validate()){
			ret2 = false;
		}
	}
	
	if(hasError == true)
		return false;
	else if(hasError == false)
		return true;
	else
		return false;
		
	if(!ret2)
		return ret2;
	if(this.addnlvalidation){
	  str =" var ret = "+this.addnlvalidation+"()";
	  eval(str);
      if(!ret) 
	  	return ret; 
	}
	return true;
}
function add_validation(itemname,descriptor,errstr)
{
  if(!this.formobj){
	  alert("BUG: the form object is not set properly");
		return;	}//if
	var itemobj = this.formobj[itemname];
  if(!itemobj) {
	alert("BUG: Couldnot get the input object named: "+itemname);
	return;	}
  if(!itemobj.validationset){
	itemobj.validationset = new ValidationSet(itemobj);}
  itemobj.validationset.add(descriptor,errstr);
}
function ValidationDesc(inputitem,desc,error)
{
  this.desc=desc;
	this.error=error;
	this.itemobj = inputitem;
	this.validate=vdesc_validate;
}
function vdesc_validate()
{
 if(!V2validateData(this.desc,this.itemobj,this.error)) {
    this.itemobj.focus();
		return false; }
 return true;
}
function ValidationSet(inputitem)
{
    this.vSet=new Array();
	this.add= add_validationdesc;
	this.validate= vset_validate;
	this.itemobj = inputitem;
}
function add_validationdesc(desc,error)
{
  this.vSet[this.vSet.length] = new ValidationDesc(this.itemobj,desc,error);
}
function vset_validate()
{
   for(var itr=0;itr<this.vSet.length;itr++){
	   if(!this.vSet[itr].validate()) {
		   return false; }
	 }
	 return true;
}
function validateEmailv2(email){
    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;
}
function V2validateData(strValidateStr,objValue,strError)
{
    var epos = strValidateStr.search("=");
    var  command  = "";
    var  cmdvalue = "";
    if(epos >= 0) {
     command  = strValidateStr.substring(0,epos);
     cmdvalue = strValidateStr.substr(epos+1);
    } else {
     command = strValidateStr; }
    switch(command)
    {
        case "req":
        case "required":
         {
           if(eval(objValue.value.length) == 0) {
              if(!strError || strError.length ==0) {
                strError = objValue.name + " : Required Field"; }//if
              //alert(strError);
			  errored[objValue.id] = objValue;
			  hasError = true;
			  //alert(objValue.style.border);
			  objValue.style.border = "2px red solid";
              }//if
           break;
         }//case required
        case "alnum":
        case "alphanumeric":
           {
              var charpos = objValue.value.search("[^A-Za-z0-9]");
              if(objValue.value.length > 0 &&  charpos >= 0) {
               if(!strError || strError.length ==0) {
                  strError = objValue.name+": Only alpha-numeric characters allowed "; }//if
                alert(strError + "\n [Error character position " + eval(charpos+1)+"]");
                }//if
              break;
           }//case alphanumeric
        case "num":
        case "numeric":
           {
              var charpos = objValue.value.search("[^0-9]");
              if(objValue.value.length > 0 &&  charpos >= 0) {
                if(!strError || strError.length ==0) {
                  strError = objValue.name+": Only digits allowed "; }//if
                alert(strError + "\n [Error character position " + eval(charpos+1)+"]");
                }//if
              break;
           }//numeric
        case "alphabetic":
        case "alpha":
           {
              var charpos = objValue.value.search("[^A-Za-z]");
              if(objValue.value.length > 0 &&  charpos >= 0) {
                  if(!strError || strError.length ==0) {
                  strError = objValue.name+": Only alphabetic characters allowed "; }//if
                alert(strError + "\n [Error character position " + eval(charpos+1)+"]");
                }//if
              break;
           }//alpha
		case "email":
          {
               if(!validateEmailv2(objValue.value)) {
                 if(!strError || strError.length ==0) {
                    strError = objValue.name+": Enter a valid Email address "; }//if
                  //alert(strError);
				  errored[objValue.id] = objValue;
				  hasError = true;
				  objValue.style.border = "2px red solid";
                 }//if
           break;
          }//case email
    }//switch
	if(errored)
		return false;
	else
	    return true;
}
/*
	Copyright 2003 JavaScript-coder.com. All rights reserved.
*/