/*
  -------------------------------------------------------------------------
	                    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/
    -------------------------------------------------------------------------  
*/
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()
{
	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)
{
  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.name,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)
{
// 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 error = document.getElementById('error_' + objValue);
		var objValue = document.getElementById(objValue);
		var submit = document.getElementById('submit_input');
    var epos = strValidateStr.search("="); 
    var  command  = ""; 
    var  cmdvalue = ""; 
    
    error.innerHTML = (error.innerHTML != '') ? error.innerHTML : '';
    objValue.className = (objValue.className == 'problem') ? 'problem' : 'input_done';
		error.className = (error.className == 'input_info problem') ? 'input_info problem' : 'input_info input_done';
		
    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"; 
    			objValue.className  = ' problem';
          error.className = 'input_info problem';
          error.innerHTML = strError; 
    			disableSubmit();
          return false; 
        }
      break;            
      case "maxlength": 
      case "maxlen": 
     		if(eval(objValue.value.length) >  eval(cmdvalue)) 
        { 
        	if(!strError || strError.length ==0) 
          	strError = objValue.name + " : "+cmdvalue+" characters maximum "; 
          objValue.className += ' problem';
          error.className = 'input_info problem';
          
          error.innerHTML = strError; 
          disableSubmit();
          return false; 
        }
      	break; 
      case "minlength": 
      case "minlen": 
        if(eval(objValue.value.length) <  eval(cmdvalue)) 
        { 
        	if(!strError || strError.length ==0) 
          	strError = objValue.name + " : "+cmdvalue+" characters minimum "; 
          objValue.className += ' problem';
          error.className = 'input_info problem';
          
          error.innerHTML = strError; 
          disableSubmit();
          return false; 
        }
        break; 
      case "username": 
        var charpos = objValue.value.search("[^A-Za-z0-9üäöÄÖÜß\._-]"); 
        if(objValue.value.length > 0 &&  charpos >= 0) 
        { 
         	if(!strError || strError.length ==0) 
           	strError = objValue.name+": Invalid Username "; 
          objValue.className += ' problem';
          error.className = 'input_info problem';
          
          error.innerHTML = strError; 
          disableSubmit();
          return false; 
        }
       	break;  
      case "float": 
	      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 "; 
	  			objValue.className += ' problem';
          error.className = 'input_info problem';
          
          error.innerHTML = strError; 
	  			disableSubmit();
	        return false; 
	      }//if 
	      break; 
      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 "; 
	  			objValue.className += ' problem';
          error.className = 'input_info problem';
          
          error.innerHTML = strError; 
	  			disableSubmit();
	        return false; 
	      }//if 
	      break;   
	      /*
	    case "alnum": 
      case "alphanumeric": 
        var charpos = objValue.value.search("[^A-Za-z0-9äöüßÄÖÜ]"); 
        if(objValue.value.length > 0 &&  charpos >= 0) 
        { 
         	if(!strError || strError.length ==0) 
           	strError = objValue.name+": Only alpha-numeric characters allowed "; 
          error.className = 'input_info problem';
         	error.innerHTML = strError; 
          disableSubmit();
          return false; 
        }
       	break; 
      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 "; 
	  			error.className = 'input_info problem';
	 				error.innerHTML = strError; 
	  			disableSubmit();
	        return false; 
	      }//if 
	      break; 
			case "alnumhyphen":
				var charpos = objValue.value.search("[^A-Za-z0-9äöüßÄÖÜ \._-]"); 
	      if(objValue.value.length > 0 &&  charpos >= 0) 
	      { 
					if(!strError || strError.length ==0) 
	  				strError = objValue.name+": Only alphabetic characters allowed "; 
	  			error.className = 'input_info problem';
	 				error.innerHTML = strError; 
	  			disableSubmit();
	        return false;
        }//if 			
			break;
			*/
			case "telephon":
				var charpos = objValue.value.search("[^0-9 \/+]"); 
	      if(objValue.value.length > 0 &&  charpos >= 0) 
	      { 
					if(!strError || strError.length ==0) 
  					strError = objValue.name+": No valid telephon number!"; 
  				objValue.className += ' problem';
          error.className = 'input_info problem';
          
          error.innerHTML = strError; 
  				disableSubmit();
        	return false;
        }//if 
			break;
			case "homepage":
				if(objValue.value.length > 0)
				{
					if(!objValue.value.match("(http:\/\/)([^\s]+)")) 
				  {  
						if(!strError || strError.length ==0) 
	  					strError = objValue.name+": No valid URL!"; 
	  				objValue.className += ' problem';
          	error.className = 'input_info problem';
          
         	 error.innerHTML = strError; 
	  				disableSubmit();
	        	return false;
	        }
        }//if 			
			break;
      case "email": 
				if(!validateEmailv2(objValue.value)) 
				{ 
					if(!strError || strError.length ==0) 
						strError = objValue.name+": Enter a valid Email address "; 
					
					objValue.className += ' problem';
          error.className = 'error_info problem';
          
          error.innerHTML = strError; 
					disableSubmit();
					return false;
				}//if 
      break; 
      
        case "lt": 
        case "lessthan": 
         { 
            if(isNaN(objValue.value)) 
            { 
              alert(objValue.name+": Should be a number "); 
              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); 
              return false;                 
             }//if             
            break; 
         }//case lessthan 
        case "gt": 
        case "greaterthan": 
         { 
            if(isNaN(objValue.value)) 
            { 
              alert(objValue.name+": Should be a number "); 
              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); 
               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.name+": Invalid characters found "; 
				              }//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.name+": Please Select one option "; 
              }//if                                                               
              alert(strError); 
              return false;                                   
             } 
             break; 
         }//case dontselect 
         
         	default: 
						objValue.className += ' input_done';
          	error.className = 'error_info input_done';
          	error.innerHTML = ''; 
      		break; 
    }//switch 
    return true; 
}

function unsetError( item )
{
	var error = document.getElementById('error_' + item);
	var objVal = document.getElementById(item);
	var submit = document.getElementById('submit_input');
	
	error.innerHTML = '';
	
  objVal.className = 'input_done';
  error.className = 'input_info input_done';
  submit.className = 'submit';
  submit.disabled = false;
	return true;
}
function disableSubmit()
{
	var submit = document.getElementById('submit_input');
	submit.className = 'submit_disabled';
	submit.disabled = false;
}
/*
	Copyright 2003 JavaScript-coder.com. All rights reserved.
*/