/*
  -------------------------------------------------------------------------
	                    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.submit=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.formobj.elements.length;itr++)
	{
		if(this.formobj.elements[itr].validationset &&
	   !this.formobj.elements[itr].validationset.validate())
		{
		  return false;
		}
	}
	if(this.formobj.addnlvalidation)
	{
	  str =" var ret = "+this.formobj.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)
{
// 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 "money":
			{
  			var format = /^([0-9]+|[0-9]{1,3}(,[0-9]{3})*)(\.[0-9]{2})?$/;
  			if(!format.test(objValue.value))	
			{
                  if(!strError || strError.length ==0) 
                { 
                  strError = objValue.name+": Valid price must be entered. "; 
                }//if                             
                alert(strError); 
                return false; 
              }//if 
              break; 
			}//decimal
		//[A-Za-z]\d{1}[A-Za-z]( |)\d{1}[A-Za-z]\d{1}
		case "postal":
			{
  			var format = /(^[A-Za-z]\d{1}[A-Za-z]( |)\d{1}[A-Za-z]\d{1}$)|(^\d{5}$)|(^\d{5}-\d{4}$)/;
  			if(!format.test(objValue.value))	
			{
                  if(!strError || strError.length ==0) 
                { 
                  strError = objValue.name+": Valid postal code must be entered. "; 
                }//if                             
                alert(strError); 
                return false; 
              }//if 
              break; 
			}//decimal
		case "phone":
			{
  			var format = /^((\+\d{1,3}(-| )?\(?\d\)?(-| )?\d{1,5})|(\(?\d{2,6}\)?))(-| )?(\d{3,4})(-| )?(\d{4})$/;
  			if(!format.test(objValue.value))	
			{
                  if(!strError || strError.length ==0) 
                { 
                  strError = objValue.name+": Valid phone number must be entered. "; 
                }//if                             
                alert(strError); 
                return false; 
              }//if 
              break; 
			}//decimal
        case "alphabetic": 
        case "alpha": 
           { 
              var charpos = objValue.value.search("[^A-Za-z]"); 
              if(objValue.value.length > 0 &&  charpos >= 0) 
              { 
                  if(!strError || strError.length ==0) 
                { 
                  strError = objValue.name+": Only alphabetic characters allowed "; 
                }//if                             
                alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
                return false; 
              }//if 
              break; 
           }//alpha 
		case "alnumhyphen":
			{
              var charpos = objValue.value.search("[^A-Za-z0-9\-_]"); 
              if(objValue.value.length > 0 &&  charpos >= 0) 
              { 
                  if(!strError || strError.length ==0) 
                { 
                  strError = objValue.name+": characters allowed are A-Z,a-z,0-9,- and _"; 
                }//if                             
                alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
                return false; 
              }//if 			
			break;
			}
		case "email":
			{
  			var format = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*\.(\w{2}|(ca|com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum|us))$/;
  			if(!format.test(objValue.value))	
			{
                  if(!strError || strError.length ==0) 
                { 
                  strError = objValue.name+": Valid email address must be entered. "; 
                }//if                             
                alert(strError); 
                return false; 
              }//if 
              break; 
			}//email
		case "time":
			{
  			var format = /^^(24):?(00)|([01][0-9]|2[0-3]):?([0-5][0-9])$/;
  			if(!format.test(objValue.value))	
			{
                  if(!strError || strError.length ==0) 
                { 
                  strError = objValue.name+": Valid time must be entered. "; 
                }//if                             
                alert(strError); 
                return false; 
              }//if 
              break; 
			}//time
        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 "ccno":
        {
			
        	//objValue.value
        	var ccNumb = objValue.value;
			var valid = "0123456789";
			var len = ccNumb.length;
			var iCCN = parseInt(ccNumb);
			var sCCN = ccNumb.toString();  // string of ccNumb
			sCCN = sCCN.replace (/^\s+|\s+$/g,'');
			var iTotal = 0;
			var bNum = true;
			var bResult = false;
			var temp;
			var calc;

			// Determine if the ccNumb is in fact all numbers
			for (var j=0; j<len; j++) {
  				temp = "" + sCCN.substring(j, j+1);
  				if (valid.indexOf(temp) == "-1"){bNum = false;}
			}
			if((len == 0)&&(bResult)){  
  				bResult = false;
			} else{  
  			  if(len >= 15) {  
    			for(var i=len;i>0;i--) {  
      				calc = parseInt(iCCN) % 10;  // right most digit
      				calc = parseInt(calc);  // assure it is an integer
      				iTotal += calc;  // running total of the card number as we loop - Do Nothing to first digit
      				i--;  // decrement the count - move to the next digit in the card
      				iCCN = iCCN / 10;                               // subtracts right most digit from ccNumb
      				calc = parseInt(iCCN) % 10 ;    // NEXT right most digit
      				calc = calc *2;                                 // multiply the digit by two
      				// Instead of some screwy method of converting 16 to a string and then parsing 1 and 6 and then adding them to make 7,
      				// I use a simple switch statement to change the value of calc2 to 7 if 16 is the multiple.
      				switch(calc){
        				case 10: calc = 1; break;       //5*2=10 & 1+0 = 1
        				case 12: calc = 3; break;       //6*2=12 & 1+2 = 3
        				case 14: calc = 5; break;       //7*2=14 & 1+4 = 5
        				case 16: calc = 7; break;       //8*2=16 & 1+6 = 7
        				case 18: calc = 9; break;       //9*2=18 & 1+8 = 9
        				default: calc = calc;           //4*2= 8 &   8 = 8  -same for all lower numbers
      				}                                               
    				iCCN = iCCN / 10;  // subtracts right most digit from ccNum
    				iTotal += calc;  // running total of the card number as we loop
  				}  // END OF LOOP
  				if ((iTotal%10)==0){  // check to see if the sum Mod 10 is zero
    				bResult = true;  // This IS (or could be) a valid credit card number.
  				} else {
    				bResult = false;  // This could NOT be a valid credit card number
    				
  				}
  			  } 
			}
			if(!bResult) {
				if(!strError || strError.length ==0) 
              	{ 
              	strError = "Valid Credit Card is required!"; 
              	}//if                                                               
              	alert(strError); 
              	return false;                                   
			}
			break;
        
  		}
         
    }//switch 
    return true; 
}
/*
	Copyright 2003 JavaScript-coder.com. All rights reserved.
*/
//email: /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*\.(\w{2}|(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum))$/