/*
  -------------------------------------------------------------------------
	                    JavaScript Form Validator
                                Version 2.0.2
	Copyright 2003 JavaScript-coder.com. All rights reserved.
	You use this script in your Web pages, provided these opening credit
    lines are kept intact.
	The Form validation script is distributed free from JavaScript-Coder.com

	You may please add a link to JavaScript-Coder.com,
	making it easy for others to find this script.
	Checkout the Give a link and Get a link page:
	http://www.javascript-coder.com/links/how-to-link.php

    You may not reprint or redistribute this code without permission from
    JavaScript-Coder.com.

	JavaScript Coder
	It precisely codes what you imagine!
	Grab your copy here:
		http://www.javascript-coder.com/
    -------------------------------------------------------------------------
*/

MSG = {
  'form_not_found' : "Could not get form object",
  'form_error'     : "Form object is not set properly",
  'input_not_found': "Could not get input object",
  'required'       : "required field",
  'chars_max'      : "maximum characters",
  'chars_min'      : "minimum characters",
  'current_length' : "Current length",
  'only_alnum'     : "Only alpha-numeric characters allowed",
  'only_alpha'     : "Only alphabetic characters allowed",
  'only_digit'     : "Only digits allowed",
  'only_email'     : "Enter a valid email address",
  'only_number'    : "Should be a number",
  'less_than'      : "Should be less than",
  'great_than'     : "Should be greater than",
  'regexp'         : "Contains unauthorized characters"
};

function Validator(frmname)
{
  this.formobj=document.forms[frmname];
	if(!this.formobj)
	{
	  alert(MSG['form_not_found']+" "+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;

	this.NiceName = new Array();

}
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()
{
	for(var itr=0;itr < this.elements.length;itr++)
	{
		if(this.elements[itr].validationset &&
	   !this.elements[itr].validationset.validate())
		{
		  return false;
		}
	}
	if(this.addnlvalidation)
	{
	  str =" var ret = "+this.addnlvalidation+"()";
	  eval(str);
    if(!ret) return ret;
	}
	return true;
}
function add_validation(itemname,descriptor,errstr,nicename)
{
  if(!this.formobj)
	{
	  alert(MSG['form_error']); return;
	}//if
	var itemobj = this.formobj[itemname];
  if(!itemobj)
	{
	  alert(MSG['input_not_found']+" "+itemname); return;
	}
	if(!itemobj.validationset)
	{
	    itemobj.validationset = new ValidationSet(itemobj,nicename);
	}
  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,nicename)
{
    this.vSet=new Array();
	this.add= add_validationdesc;
	this.validate= vset_validate;
	this.itemobj = inputitem;
	(nicename != '') ? this.itemobj.nicename = nicename : this.itemobj.nicename = this.itemobj.name;
}
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)
{
// a very simple email validation checking.
// you can add more complex email checking if it helps
    if(email.length <= 0)
	{
	  return true;
	}
    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.nicename + " : " + MSG['required'];
              }//if
              alert(strError);
              return false;
           }//if
           break;
         }//case required
        case "maxlength":
        case "maxlen":
          {
             if(eval(objValue.value.length) >  eval(cmdvalue))
             {
               if(!strError || strError.length ==0)
               {
                 strError = objValue.nicename + " : "+cmdvalue+" "+MSG['chars_max'];
               }//if
               alert(strError + "\n["+MSG['current_length']+" = " + objValue.value.length + " ]");
               return false;
             }//if
             break;
          }//case maxlen
        case "minlength":
        case "minlen":
           {
             if(eval(objValue.value.length) <  eval(cmdvalue))
             {
               if(!strError || strError.length ==0)
               {
                 strError = objValue.nicename + " : " + cmdvalue + " " + MSG['chars_min'];
               }//if
	       alert(strError + "\n["+MSG['current_length']+" = " + objValue.value.length + " ]");
               return false;
             }//if
             break;
            }//case minlen
        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.nicename+": "+MSG['only_alnum'];
                }//if
                alert(strError + "\n [Error character position " + eval(charpos+1)+"]");
                return false;
              }//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.nicename+": "+MSG['only_digit'];
                }//if
                alert(strError + "\n [Error character position " + eval(charpos+1)+"]");
                return false;
              }//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.nicename+": "+MSG['only_alpha'];
                }//if
                alert(strError + "\n [Error character position " + eval(charpos+1)+"]");
                return false;
              }//if
              break;
           }//alpha
		case "alnumhyphen":
			{
              var charpos = objValue.value.search("[^A-Za-z0-9\-_]");
              if(objValue.value.length > 0 &&  charpos >= 0)
              {
                  if(!strError || strError.length ==0)
                {
                  strError = objValue.nicename+": characters allowed are A-Z,a-z,0-9,- and _";
                }//if
                alert(strError + "\n [Error character position " + eval(charpos+1)+"]");
                return false;
              }//if
			break;
			}
        case "email":
          {
               if(!validateEmailv2(objValue.value))
               {
                 if(!strError || strError.length ==0)
                 {
                    strError = objValue.nicename+" : "+MSG['only_email'];
                 }//if
                 alert(strError);
                 return false;
               }//if
           break;
          }//case email
        case "lt":
        case "lessthan":
         {
            if(isNaN(objValue.value))
            {
              alert(objValue.nicename+" : "+MSG['only_number']);
              return false;
            }//if
            if(eval(objValue.value) >=  eval(cmdvalue))
            {
              if(!strError || strError.length ==0)
              {
                strError = objValue.nicename + " : " + MSG['less_than'] + " " + cmdvalue;
              }//if
              alert(strError);
              return false;
             }//if
            break;
         }//case lessthan
        case "gt":
        case "greaterthan":
         {
            if(isNaN(objValue.value))
            {
	      alert(objValue.nicename+" : "+MSG['only_number']);
              return false;
            }//if
             if(eval(objValue.value) <=  eval(cmdvalue))
             {
               if(!strError || strError.length ==0)
               {
		 strError = objValue.nicename + " : " + MSG['great_than'] + " " + cmdvalue;
               }//if
               alert(strError);
               return false;
             }//if
            break;
         }//case greaterthan
        case "regexp":
         {
	   if(objValue.value.length > 0)
	     {
	       if(!objValue.value.match(cmdvalue))
		 {
		   if(!strError || strError.length ==0)
		     {
		       strError = objValue.nicename+" : "+MSG['regexp'];
		     }//if
		   alert(strError);
		   return false;
		 }//if
	     }
           break;
         }//case regexp
        case "dontselect":
         {
            if(objValue.selectedIndex == null)
            {
              alert("BUG: dontselect command for non-select Item");
              return false;
            }
            if(objValue.selectedIndex == eval(cmdvalue))
            {
             if(!strError || strError.length ==0)
              {
              strError = objValue.nicename+": Please Select one option ";
              }//if
              alert(strError);
              return false;
             }
             break;
         }//case dontselect
    }//switch
    return true;
}
/*
	Copyright 2003 JavaScript-coder.com. All rights reserved.
*/