/*
  -------------------------------------------------------------------------
	                Validation Script in JavaScript
                                Version 2.0
	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

	In return, you are requested to add a link to JavaScript-Coder.com, 
	making it easy for others to find this script.
	You can get the code for the link from: 
	http://www.javascript-coder.com/gen/link-to-us.phtml 

	If you want to get your site listed in the members' page, 
	send an email to: support@javascript-coder.com 

    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/
    -------------------------------------------------------------------------  
*/
useAlerts = 0;
var fields = new Array();
var dislplays;
function Validator(frmname, fuseAlerts)
{
  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;
	useAlerts = (fuseAlerts == null) ? 0 : fuseAlerts;
	all = 1;
}
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()
{
  fields = new Array();
  displays = new Array();
  globresult = true;
	for(var itr=0;itr < this.elements.length;itr++)
	{
		if(this.elements[itr].validationset &&
	   !this.elements[itr].validationset.validate())
		{
		  globresult = false;
		  if (all != 1)
		  {
		    return false;
		  }
		}
	}
	if(this.addnlvalidation)
	{
	  str =" var ret = "+this.addnlvalidation+"()";
	  eval(str);
    if(!ret) return ret;
	}
	
    for(var item in fields) 
    {
      if (fields[item] == "valid")
      {
        Clear(document.getElementById(item), displays[item]);
      }
    }
	
	return globresult;
}
function add_validation(itemname,descriptor,errstr,errorDisplayName)
{
  if(!this.formobj)
	{
	  alert("BUG: the form object is not set properly");
		return;
	}//if
	var itemobj = this.formobj[itemname];
	var errorDisplay = null;
	if (errorDisplayName != null)
	{
    errorDisplay = document.getElementById(errorDisplayName);
  }
  if (errorDisplayName && !errorDisplay)
  {
    alert("BUG: Couldnot get the input object named: "+errorDisplayName);
		return;
  }
  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,errorDisplay);
}
function ValidationDesc(inputitem,desc,error)
{
  this.desc=desc;
	this.error=error;
	this.itemobj = inputitem;
	this.validate=vdesc_validate;
}
function ValidationDesc(inputitem, desc, error, errorDisplay)
{
  this.desc=desc;
	this.error=error;
	this.itemobj = inputitem;
	this.errorDisplay = errorDisplay;
	this.validate=vdesc_validate;
}

function vdesc_validate()
{
 if (this.errorDisplay == null)
 {
   if(!V2validateData(this.desc,this.itemobj,this.error, null))
   {
      this.itemobj.focus();
  		return false;
   }
   return true;
 }
 else
 {
   if(!V2validateData(this.desc,this.itemobj,this.error, this.errorDisplay))
   {
      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, errorDisplay)
{
  this.vSet[this.vSet.length]= 
	  new ValidationDesc(this.itemobj,desc,error, errorDisplay);
}
function vset_validate()
{
   result = true;
   for(var itr=0;itr<this.vSet.length;itr++)
	 {
	   if(!this.vSet[itr].validate())
		 {
		   result = false;
		 }
	 }
	 return result;
}
function validateEmailv2(email)
{
// a very simple email validation checking. 
// you can add more complex email checking if it helps 
    if (email == '')
      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 notValid(strError, objValue, errorDisplay)
{
  fields[objValue.id] = "invalid";
  
  if (useAlerts)
  {
    alert(strError)
  }
  else
  {
    var theNewParagraph;
    if (errorDisplay == null)
    {
      theNewParagraph = document.createElement('span');
      theNewParagraph.className='validationError'
      var theTextOfTheParagraph = document.createTextNode(strError);
      theNewParagraph.appendChild(theTextOfTheParagraph);
      errorDisplay = theNewParagraph;
      if (objValue.nextSibling)
      {
        objValue.parentNode.replaceChild(theNewParagraph, objValue.nextSibling);
      }
      else
      {
        objValue.parentNode.appendChild(theNewParagraph);
      }
    }
    else
    {
      errorDisplay.innerHTML = strError;
    }
  }
  displays[objValue.id] = errorDisplay;
}

function Valid(strError, objValue, errorDisplay)
{
  if (fields[objValue.id] != "invalid")
  {
    fields[objValue.id] = "valid";
  }
  if (errorDisplay != null)
  {
	  displays[objValue.id] = errorDisplay;
  }
  return;
	  
  if (!useAlerts)
  {
    if (errorDisplay != null)
    {
      errorDisplay.innerHTML = "";
    }
    else
    {
    /*
      theNewParagraph = document.createElement('span');
      var theTextOfTheParagraph = document.createTextNode('');
      theNewParagraph.appendChild(theTextOfTheParagraph);
      
      if (objValue.nextSibling)
      {
        objValue.parentNode.replaceChild(theNewParagraph, objValue.nextSibling);
      }
    */
    } 
  }
}

function Clear(objValue, errorDisplay)
{
	if (errorDisplay != null && errorDisplay.firstChild != null)
	{
		errorDisplay.firstChild.textContent = "";
	}
}

function V2validateData(strValidateStr,objValue,strError,errorDisplay) 
{ 
    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 
              notValid(strError, objValue, errorDisplay) 
              return false; 
           }//if 
           else
           {
             Valid(strError, objValue, errorDisplay)
           }
           break;             
         }//case required 
        case "maxlength": 
        case "maxlen": 
          { 
             if(eval(objValue.value.length) >  eval(cmdvalue)) 
             { 
               if(!strError || strError.length ==0) 
               { 
                 strError = objValue.name + " : "+cmdvalue+" characters maximum "; 
               }//if 
               //alert(strError + "\n[Current length = " + objValue.value.length + " ]");
               notValid(strError, objValue, errorDisplay) ;
               return false; 
             }//if 
             else
             {
               Valid(strError, objValue, errorDisplay)
             }
             break; 
          }//case maxlen 
        case "minlength": 
        case "minlen": 
           { 
             if(eval(objValue.value.length) <  eval(cmdvalue)) 
             { 
               if(!strError || strError.length ==0) 
               { 
                 strError = objValue.name + " : " + cmdvalue + " characters minimum  "; 
               }//if               
               //alert(strError + "\n[Current length = " + objValue.value.length + " ]");
               notValid(strError, objValue, errorDisplay) ;
               return false;                 
             }//if 
             else
             {
               Valid(strError, objValue, errorDisplay)
             }
             break; 
            }//case minlen 
        case "match":
        	{
        		if (objValue.value != document.getElementById(cmdvalue).value)
        		{
        			notValid(strError, objValue, errorDisplay);
        		}
        		else 
        		{
        			Valid(strError, objValue, errorDisplay);
        		}
        		break;
        	}//case match
        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)+"]");
                notValid(strError, objValue, errorDisplay) ;
                return false; 
              }//if 
              else
               {
                 Valid(strError, objValue, errorDisplay)
               }
              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)+"]");
                notValid(strError, objValue, errorDisplay); 
                return false; 
              }//if 
              else
             {
               Valid(strError, objValue, errorDisplay)
             }
              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)+"]");
                notValid(strError, objValue, errorDisplay); 
                return false; 
              }//if 
              else
             {
               Valid(strError, objValue, errorDisplay)
             }
              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.name+": characters allowed are A-Z,a-z,0-9,- and _"; 
                }//if                             
                //alert(strError + "\n [Error character position " + eval(charpos+1)+"]");
                notValid(strError, objValue, errorDisplay); 
                return false; 
              }//if 			
              else
             {
               Valid(strError, objValue, errorDisplay)
             }
			break;
			}
        case "email": 
          { 
               if(!validateEmailv2(objValue.value)) 
               { 
                 if(!strError || strError.length ==0) 
                 { 
                    strError = objValue.name+": Enter a valid Email address "; 
                 }//if                                               
                 notValid(strError, objValue, errorDisplay); 
                 return false; 
               }//if 
               else
               {
                 Valid(strError, objValue, errorDisplay)
               }
           break; 
          }//case email 
        case "lt": 
        case "lessthan": 
         { 
            if(isNaN(objValue.value)) 
            { 
              //alert(objValue.name+": Should be a number ");
              notValid(strError, objValue, errorDisplay); 
              return false; 
            }//if 
            if(eval(objValue.value) >=  eval(cmdvalue)) 
            { 
              if(!strError || strError.length ==0) 
              { 
                strError = objValue.name + " : value should be less than "+ cmdvalue; 
              }//if               
              //alert(strError);
              notValid(strError, objValue, errorDisplay); 
              return false;                 
             }//if           
             else
             {
               Valid(strError, objValue, errorDisplay)
             }
            break; 
         }//case lessthan 
        case "gt": 
        case "greaterthan": 
         { 
            if(isNaN(objValue.value)) 
            { 
              ///alert(objValue.name+": Should be a number ");
              notValid(strError, objValue, errorDisplay); 
              return false; 
            }//if 
             if(eval(objValue.value) <=  eval(cmdvalue)) 
             { 
               if(!strError || strError.length ==0) 
               { 
                 strError = objValue.name + " : value should be greater than "+ cmdvalue; 
               }//if               
               //alert(strError);
               notValid(strError, objValue, errorDisplay); 
               return false;                 
             }//if 
             else
             {
               Valid(strError, objValue, errorDisplay)
             }            
            break; 
         }//case greaterthan 
        case "regexp": 
         { 
            if(!objValue.value.match(cmdvalue)) 
            { 
              if(!strError || strError.length ==0) 
              { 
                strError = objValue.name+": Invalid characters found "; 
              }//if                                                               
              //alert(strError);
              notValid(strError, objValue, errorDisplay) 
              return false;                   
            }//if 
            else
             {
               Valid(strError, objValue, errorDisplay)
             }
           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.name+": Please Select one option "; 
              }//if                                                               
              notValid(strError, objValue, errorDisplay) 
              return false;                                   
            } 
            else
             {
               Valid(strError, objValue, errorDisplay)
             }
            break;
         }//case dontselect 
    }//switch 
    return true; 
}
/*
	Copyright 2003 JavaScript-coder.com. All rights reserved.
*/