/*
  -------------------------------------------------------------------------
	                    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.validateManually=test;
	this.addValidation = add_validation;
	this.setAddnlValidationFunction=set_addnl_vfunction;
	this.clearAllValidations = clear_all_validations;
}
/*
function test()
{
	//alert('test');	
	form_submit_handler();
}
*/

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: Couldnot1 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)
{
// 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.name + " : Required Field"; 
              }//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.name + " : "+cmdvalue+" characters maximum "; 
               }//if 
               alert(strError + "\n[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.name + " : " + cmdvalue + " characters minimum  "; 
               }//if               
               alert(strError + "\n[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.name+": Only alpha-numeric characters allowed "; 
                }//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.name+": Only digits allowed "; 
                }//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.name+": Only alphabetic characters allowed "; 
                }//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.name+": 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.name+": Enter a valid Email address "; 
                 }//if                                               
                 alert(strError); 
                 return false; 
               }//if 
           break; 
          }//case email 
        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 
		 
		 case "radioButtonCheckOnSelected": 						//Manual Valudation for the busdrivers form
         { 
            if(objValue.checked == false)
			{
	            alert(strError); 
            	return false; 
			}			
            break; 
         }//case radioButtonCheckOnSelected
		 
		 case "checkSocialSecurityNumber": 							//Manual Valudation for the busdrivers form
         { 
			socialSecNumber = objValue.value;

			if(socialSecNumber == '')	//in this case, the field is not required, so no number at all is also fine.
			{
				return true;
			}
			
			lengthBefore = socialSecNumber.length;
			var re = new RegExp('[^0-9]','g');
			socialSecNumber = socialSecNumber.replace(re,'');
			lengthAfter = socialSecNumber.length;
			
			//objValue.value = socialSecNumber;		//Could set the new value back
				
			if(lengthAfter != 9)
			{
				alert(strError);
				return false;
			}
			else	//if the socialsecuritynumber is 9 numbers...
			{
				//(p1*9 +p2*8+p3*7+p4*6+p5*5+p6*4+p7*3+p8*2-p9
				var totaal = 0;
				for(i=0; i < 8; i++)
				{
					totaal += (9-i) * parseInt(socialSecNumber.charAt(i));
				}
				totaal -= parseInt(socialSecNumber.charAt(8))				//minus last number
				
				if(totaal % 11 == 0)
				{
					//The socialsecurity number is right
					return true;
				}
				else
				{
					//THe socialsecurity number is not right
					alert(strError);
					return false;
				}
			}			
			
            break; 
         }//case checkSocialSecurityNumber
		 
		 case "checkInitials": 							//Manual Valudation for the busdrivers form
         { 
			initals = objValue.value;

			var re = new RegExp('[a-z | A-Z | \.]','g');		
			var rest = initals.replace(re,'');				//the string rest contains the remaining characters other than (a-z | A-Z | \.)
	
			if(rest != '')
			{
				alert(strError);
				return false;
			}

			break;
		 }//case checkInitials
		 
		 case "dateNotInFuture": 							//Manual Valudation for the busdrivers form
         { 
			var fields_array = cmdvalue.split("|");
			
			var myDate = new Date;
			myDate.setFullYear(document.getElementById(fields_array[0]).value, document.getElementById(fields_array[1]).value - 1, document.getElementById(fields_array[2]).value)
			
			var today = new Date;
			
			if (myDate > today){
				alert(strError);
				return false;
			}
	
			break;
		 }//case dateNotInFuture
		 
		 case "dateDifferenceBetweenYears": 							//Manual Valudation for the busdrivers form
         { 
			var fields_array = cmdvalue.split("|");
			
			if(eval(document.getElementById(fields_array[0]).value.length) == 0){
				return true;	
			}
			
			var myDate = new Date;
			myDate.setFullYear(document.getElementById(fields_array[0]).value, document.getElementById(fields_array[1]).value - 1, document.getElementById(fields_array[2]).value)
			var today = new Date;

			//The date must lie between today (which is zero below), and a number of years
			//................................ 0 .....................................
			//

			var notBelow = fields_array[3];
			var notOver = fields_array[4];

			var datediff = dateDifferenceInYears(today,myDate);
			
			if(! isNaN(notBelow)){				//The date must not be below a number of years difference with today
				if (datediff > notBelow){
					alert(strError);
					return false;
				}
			}

			if(! isNaN(notOver)){				//The date must not be above a number of years difference with today
				if (datediff < notOver){
					alert(strError);
					return false;
				}
			}
	
			break;
		 }//case dateDifferenceBetweenYears
		 
		 case "yearDifferenceBetweenToday": 							//Manual Valudation for the busdrivers form
         { 
			
			if(eval(objValue.value.length) == 0){  //abort check if the value if empty
				return true;	
			}
			
			var fields_array = cmdvalue.split("|");
			
			//The year must lie between the current year (which is zero below), and a number of years
			//................................ 0 .....................................
			//
			
			var myDate = new Date;
			myDate.setFullYear(objValue.value, 0,0)
			var today = new Date;
			
			var notBelow = fields_array[0];
			var notOver = fields_array[1];

			var datediff = dateDifferenceInYears(today,myDate);			
			
			if(! isNaN(notBelow)){				//The date must not be below a number of years difference with today
				if (datediff > notBelow){
					alert(strError);
					return false;
				}
			}

			if(! isNaN(notOver)){				//The date must not be above a number of years difference with today
				if (datediff < notOver){
					alert(strError);
					return false;
				}
			}
	
			break;
		 }//case yearDifferenceBetweenToday
		 
		 
		case "yearDifferenceBetweenDate": 							//Manual Valudation for the busdrivers form
         { 
			
			var fields_array = cmdvalue.split("|");
			
			if(eval(objValue.value.length) == 0){
				return true;	
			}
			
			var dateOfBirth = new Date;
			dateOfBirth.setFullYear(document.getElementById(fields_array[0]).value, document.getElementById(fields_array[1]).value - 1, document.getElementById(fields_array[2]).value);
			var experienceYears = new Date;
			experienceYears.setFullYear(objValue.value, 0, 0);
			
			var minimalDifference = fields_array[3];
			var datediff = dateDifferenceInYears(dateOfBirth,experienceYears);		//for example born in 1950 and started in 1984 gives 34
			
			if (datediff < minimalDifference){
				alert(strError);
				return false;
			}
	
			break;
		 }//case yearDifferenceBetweenDate
		 
		 		   
		case "alpha_dot_stripe":
			{
              var charpos = objValue.value.search("[^A-Za-z\-\\s\.\,_]"); 
              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)+"]"); 
                return false; 
              }//if 			
			break;
			}
		 
		 
		 
    }//switch 
    return true; 
}

/*
 * if date1 is later than date2 the outcome will be the number of years negative
 * if date1 is earlier than date2 the outcome will be the number of years positive
 * //1950-0-00	1984-0-0-     --> 		34
 */
function dateDifferenceInYears(date1, date2)
{
	//Calculate difference btw the two dates, and convert to years		-->  the true number of days in a year is 365.2422
	var one_year= 1000 * 60 * 60 * 24 * 365.2422
	var datediff = Math.floor((date1.getTime()-date2.getTime())/(one_year));	//in years
	var datediff = datediff * -1;
	//alert(datediff);
	
	return datediff;
}

function confirmation(txt, url) {
	var answer = confirm(txt)
	if (answer){
		window.location = url;
	}
}


/*
	Copyright 2003 JavaScript-coder.com. All rights reserved.
*/

var isNN = (navigator.appName.indexOf("Netscape")!=-1);

function autoTab(input,len, e) {
	var keyCode = (isNN) ? e.which : e.keyCode; 
	var filter = (isNN) ? [0,8,9] : [0,8,9,16,17,18,37,38,39,40,46];
	
	if(input.value.length >= len && !containsElement(filter,keyCode)) {
		input.value = input.value.slice(0, len);
		input.form[(getIndex(input)+1) % input.form.length].focus();
	}
	
	function containsElement(arr, ele) {
		var found = false, index = 0;
		while(!found && index < arr.length)
		if(arr[index] == ele)
		found = true;
		else
		index++;
		return found;
	}
	
	function getIndex(input) {
		var index = -1, i = 0, found = false;
		while (i < input.form.length && index == -1)
		if (input.form[i] == input)index = i;
		else i++;
		return index;
	}
	
	return true;
}