/*
  -------------------------------------------------------------------------
	                    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,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;               
   		}// case 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; 
        }//case 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 alnumhyphen
        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 
			}//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
	}//switch 
	return true; 
}
/*
	Copyright 2003 JavaScript-coder.com. All rights reserved.
*/

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//This file retrieved from the JS-Examples archives
//http://www.js-x.com
//1000s of free ready to use scripts, tutorials, forums.
//Author: Roy Tsang - http://cstsang.port5.com/javascript-toolbox/ 

/**********************************************************************/ 
/*Function name :isDigit(theDigit) */ 
/*Usage of this function :test for an digit */ 
/*Input parameter required:thedata=string for test whether is digit */ 
/*Return value :if is digit,return true */ 
/* else return false */ 
/**********************************************************************/ 
function isDigit(theDigit) { 
var digitArray = new Array('0','1','2','3','4','5','6','7','8','9'),j; 

for (j = 0; j < digitArray.length; j++) 
{if (theDigit == digitArray[j]) 
return true 
} 
return false 

} 
/*************************************************************************/ 
/*Function name :isPositiveInteger(theString) */ 
/*Usage of this function :test for an +ve integer */ 
/*Input parameter required:thedata=string for test whether is +ve integer*/ 
/*Return value :if is +ve integer,return true */ 
/* else return false */ 
/*function require :isDigit */ 
/*************************************************************************/ 
function isPositiveInteger(theString) 
{ 
var theData = new String(theString) 

if (!isDigit(theData.charAt(0))) 
if (!(theData.charAt(0)== '+')) 
return false 

for (var i = 1; i < theData.length; i++) 
if (!isDigit(theData.charAt(i))) 
return false 
return true 
} 
/**********************************************************************/ 
/*Function name :isDate(s,f) */ 
/*Usage of this function :To check s is a valid format */ 
/*Input parameter required:s=input string */ 
/* f=input string format */ 
/* =1,in mm/dd/yyyy format */ 
/* else in dd/mm/yyyy */ 
/*Return value :if is a valid date return 1 */ 
/* else return 0 */ 
/*Function required :isPositiveInteger() */ 
/**********************************************************************/ 
function isDate(s,f) 
{var a1=s.split("/"); 
var a2=s.split("-"); 
var e=true; 
if ((a1.length!=3) && (a2.length!=3)) 
{ 
e=false; 
} 
else 
{if (a1.length==3) 
var na=a1; 
if (a2.length==3) 
var na=a2; 
if (isPositiveInteger(na[0]) && isPositiveInteger(na[1]) && isPositiveInteger(na[2])) 
{ if (f==1) 
{var d=na[1],m=na[0]; 
} 
else 
{var d=na[0],m=na[1]; 
} 
var y=na[2]; 
if (((e) && (y<1000)||y.length>4)) 
e=false 
if (e) 
{ 
v=new Date(m+"/"+d+"/"+y); 
if (v.getMonth()!=m-1) 
e=false; 
} 
} 
else 
{ 
e=false; 
} 
} 
return e 
} 
function checkDate(v) { 
	
	var s=v.value;
	var strResult = "";

	//if (isDate())  //dd/mm/yyyy, dd-mm-yyyy, mm/dd/yyyy or mm-dd-yyyy format 
	//if (isDate(s,1))  // mm/dd/yyyy or mm-dd-yyyy format
	//if (isDate(s,0)) //dd/mm/yyyy  or dd-mm-yyyy format 

	if (s == "") { 
		strResult = 'Empty';
	} else {
		if (isDate(s,0)) {
			strResult = 'Valid';
		} else {
			strResult = 'Invalid';
		}
	}
	return strResult;
}

function compareDates(FirstDate, SecondDate) {

	var strResult = "";
	
	if (FirstDate == "" || SecondDate == "") {
		strResult = 'Empty';
	} else {
		//strFirstDate = FirstDate
		//strSecondDate = SecondDate
		lngFirstDate = Date.parse(FirstDate);
		lngSecondDate = Date.parse(SecondDate);
		if (lngSecondDate > lngFirstDate) {
			strResult = 'Valid';
		} else {
			strResult = 'Invalid';
		}
	}
	return strResult;
}