function validator()
{
   this.inputName               = new Array();   
   this.validationType          = new Array();   
   this.formName                = new Array();
   this.errorMessage            = new Array();
   this.formSubmitObject        = "";
   this.length                  = 0;
   this.emptyErrorMessage       = "The required field is missing: ";
   this.showError               = true;

   this.validate        = validate;
   this.required        = required;
   this.unrequired	= unrequired;
   this.isInputValid    = isInputValid;
   this.displayError    = displayError;
   this.isEmailValid    = isEmailValid;
   this.isFileValid     = isFileValid;
   this.isCCExpValid    = isCCExpValid;
   this.isCCNumValid    = isCCNumValid;
   this.isMinChecked    = isMinChecked;
   this.isPassWordValid = isPassWordValid;
   this.isPhoneValid    = isPhoneValid;
   this.isZipValid      = isZipValid;
   this.getIndex        = getIndex;
}

function setFormSubmitObject(formName)
{
   this.formSubmitObject= eval("document."+formName);
}

function getFormObject(formNameTemp)
{
   if(typeof inputNameTemp == 'string')
   {
      formName = eval("document."+formNameTemp);
   }else{
      formName = formNameTemp;
   }
   return formName;
}
function getInputObject(formNameTemp,inputNameTemp)
{

   if((typeof formNameTemp == 'string') && (typeof inputNameTemp == 'string') )
   {
      inputName = eval("document."+formNameTemp+"."+inputNameTemp);
   }else if(typeof inputNameTemp == 'string'){
      formName = getFormObject(formNameTemp);
      inputName = formName[inputNameTemp];
   }else{
      inputName = inputNameTemp;
   }
   return inputName;
}

/*
function setErrorMessage(inputNameTemp,message)
{
   for(i=0;i<this.length;i++)
   {
      if(this.inputName[i]==inputNameTemp);
   }
}
*/

function validate(formObject)
{
   for(i=0;i<this.length;i++)
   {

      if(this.validationType[i] == null || this.validationType[i] == "REGULAR" )
      {
         if(this.isInputValid(this.formName[i],this.inputName[i])==false)
         {
            return false;
         }
      }
      else if(this.validationType[i] == "PASSWORD")
      {
         pwds = this.inputName[i].replace(/ /g,"").split("&");
         if(this.isPassWordValid(this.formName[i],pwds[0],pwds[1])==false)
         {
           return false;
         }
      }
      else if(this.validationType[i] == "MIN_CHECKED")
      {
         if(this.isMinChecked(this.formName[i],this.inputName[i])==false)
         {
           // this.displayError(formName,this.inputName[i]);
           return false;
         }
      }
      else if(this.validationType[i] == "CC_EXP")
      {
         args = this.inputName[i].replace(/ /g,"").split("&");
         if(this.isCCExpValid(this.formName[i],args[0],args[1])==false)
         {
           this.displayError(formName,this.inputName[i],"EMPTY");
           return false;
         }
      }
      else if(this.validationType[i] == "CC_NUM")
      {
         args = this.inputName[i].replace(/ /g,"").split("&");
         if(this.isCCNumValid(this.formName[i],args[0],args[1])==false)
         {
           return false;
         }
      }
      else if(this.validationType[i] == "EMAIL")
      {
         email = this.inputName[i];
         if(this.isEmailValid(this.formName[i],email)==false)
         {
            return false;
            
         }
      }
      else if(this.validationType[i] == "FILE")
      {
         filename = this.inputName[i];
         if(this.isFileValid(this.formName[i],filename)==false)
         {
           this.displayError(formName,this.inputName[i],"EMPTY");
           return false;
            
         }
      }
      else if(this.validationType[i] == "ZIP")
      {
         zip = this.inputName[i];
         if(this.isZipValid(this.formName[i],zip)==false)
         {
            return false;
         }
      }
      else if(this.validationType[i] == "PHONE")
      {
         phone = this.inputName[i];
         if(this.isPhoneValid(this.formName[i],phone)==false)
         {
            return false;
         }
      }

   } 

   if(formObject!=null)
   {
      formSubmitObject = formObject;
   }

   return true;
}

function validateEmail()
{

}

function getIndex( formName, inputName )
{

   for ( i = 0; i < this.length; ++i ) {

	if ( this.formName[i] == formName && this.inputName[i] == inputName ) {

		return i;
	}
   }
   return -1;
}

function required(formName,inputName,message,validationType)
{

  index = this.getIndex( formName, inputName );

  if ( index < 0 ) {
   	this.formName[this.length]	 = formName;
   	this.inputName[this.length]	 = inputName;
   	this.validationType[this.length] = validationType;
	this.errorMessage[this.length] 	 = message;
   	this.length++;
  }
  else {

	this.validationType[ index ] 	 = validationType;
  }
}

function unrequired(formName,inputName,validationType)
{

  index = this.getIndex( formName, inputName );

  if ( index >= 0 ) {
	this.validationType[ index ] = "NONE";
  }
}


function displayError(formName,inputName,errorType)
{
  if(this.showError==false) return;

  index = this.getIndex( formName,inputName );

  if ( index >= 0 ) {
    if ( this.errorMessage[ index ] != null ) {
	alert( this.errorMessage[index] );
	return;
    }
  }

  if(errorType=="EMPTY") {
      alert(this.emptyErrorMessage+' '+inputName);
  }
}

function isInputValid(formNameTmp,inputName,validationType)
{
   formName     = getFormObject(formNameTmp);
   elementName  = getInputObject(formNameTmp,inputName);

   if ( ! formName ) {
     alert( "Error getting Form: " + formNameTmp );
     return false;
   }

   if ( ! elementName ) {
     alert( "Error getting Element: " + inputName );
     return false;
   }

   if ( (elementName.type == "text") || (elementName.type == "textarea") || (elementName.type == "hidden") || elementName.type == "password" ) 
   {
      if(elementName.value=='')
      {
         this.displayError(formNameTmp,elementName.name,"EMPTY");
         elementName.focus();
         return false;
      }
   }
   else if(elementName.type=='select-one'|| elementName.type=='select')
   {
      index=elementName.selectedIndex;
      if(index==-1 || elementName.options[index].value == "")
      {
         this.displayError(formNameTmp,elementName.name,"EMPTY");
         elementName.focus();
         return false;
      }
   }
   else if(elementName.type=='checkbox') 
   {
      if(elementName.checked==false)
      {
         this.displayError(formNameTmp,inputName,"EMPTY");
         return false;
      }
   }
   else if( elementName[0].type=='radio') 
   {
	var r;
	for ( r = 0; r < elementName.length; ++r ) {
      	    if(elementName[r].checked == true ) {
		return true;
	    }
	}

        this.displayError(formNameTmp,inputName,"EMPTY");
        return false;
   }
   else if(elementName.type==null) 
   {
      radioLength=elementName.length;
      if(!(radioLength>0))
      {
        //alert('element not defined'); 
        return false; 
      }
      for(j=0;j<radioLength;j++)
      {
         //alert(elementName[j].name+" "+j+" checked = "+elementName[j].checked)
         if(elementName[j].checked==true)
         {
            return true;
         }
      }
      this.displayError(formNameTmp,inputName,"EMPTY");
  
      return false;
   }
   else
   {
      if(elementName.value=='')
      {
         this.displayError(formNameTmp,elementName.name,"EMPTY");
         elementName.focus();
         return false;
      }
   }
   return true;
}

function isEmailValid(formName,emailTemp)
{ 
   emailName=getInputObject(formName,emailTemp);
   if(emailName.value.match(/^[A-Za-z0-9]+[A-Za-z0-9\_\-\.']*\@[A-Za-z0-9\.\_\-]+(\.[A-Za-z0-9\_\-])*$/) ==null)
   {
      emailName.focus();
      alert("The email address you provided is invalid. Please try again!");
      return false;
   }
   return true;
}

function isFileValid(formName,fieldName)
{ 
   fileName_exist  = getInputObject(formName,fieldName);
   fileName_upload = getInputObject(formName,fieldName + "_file" );

   if ( fileName_exist.value == '' && fileName_upload.value == '' )
   {
      fileName_upload.focus();
      return false;
   }
   return true;
}



function isPhoneValid(formName,phoneTemp)
{
   phoneNumber=getInputObject(formName,phoneTemp);
   if(phoneNumber.value.match(/^1{0,1} *(-| ){0,1} *[\(]*[0-9]{0,3}[\)]* *(-| ){0,1} *[0-9]{3} *(-| ){0,1} *[0-9]{4}$/)
==null)
   {
      phoneNumber.focus();
      alert("The phone number you entered is invalid. Please try again!");
      return false;
   }
   return true;
}

function isZipValid(formName,zipTemp)
{
   zipCode=getInputObject(formName,zipTemp);
   if(zipCode.value.match(/^[0-9A-Za-z]*[\-]*[0-9A-Za-z]+$/)==null)
   {
      zipCode.focus();
      alert("The zipcode you entered is invalid. Please try again!");
      return false;
   }
   return true;
}

function isCCNumValid( formName, cc_num_fld, cc_type_fld )
{

  cc_num  = getInputObject(formName, cc_num_fld );
  cc_type = getInputObject(formName, cc_type_fld );
  
  cc_number = cc_num.value.replace( /[- ]/g, "" );

  idx = cc_type.selectedIndex;
  card_type = cc_type.options[idx].value;

  stat = -1;

  if ( card_type == "amex" || card_type == "American Express" ) {
    stat = ( cc_number.match( /^\d{15}$/ ) && cc_number.charAt(0) == '3');
  }
  else {
    if ( card_type == "visa" ) {
      stat = (  cc_number.match( /^\d{16}$/ ) && cc_number.charAt(0) == '4' );

    } else if ( card_type == "mc" ) {
      stat = (  cc_number.match( /^\d{16}$/ ) && cc_number.charAt(0) == '5' );

    }
  }

  if ( ! stat ) {

    this.displayError(formName,cc_num_fld + "&" + cc_type_fld,"");// + " & " + cc_type_fld
    cc_num.focus();
    return false;
  }
  else {
    return true;
  }
}

function isMinChecked( formName, orig_field_name )
{
   var j;

   var args = orig_field_name.replace(/ /g,"").split("&");
   min  = args[0];

   num_checked = 0;

   for ( j = 1; j < args.length; j++ ) {

	fieldName = args[j];
   	theField = getInputObject(formName,fieldName );

	if ( theField.checked ) {
	  num_checked++;
        }
   }

   if ( num_checked < min ) {
     this.displayError(formName, orig_field_name ); 
     return false;
   }

   return true;
}

function isCCExpValid( formName, cc_mon_fld, cc_year_fld )
{
   cc_mon  = getInputObject(formName,cc_mon_fld );
   cc_year = getInputObject(formName,cc_year_fld );

thismonth = 3;
thisyear  = 2010;

   idx = cc_mon.selectedIndex;
   sel_month = cc_mon.options[ idx ].value;

   idx = cc_year.selectedIndex;                 
   sel_year = cc_year.options[ idx ].value;

   if ( sel_year > thisyear ) {
        return true;
   }
   else if ( sel_year < thisyear ) {               
         cc_mon.focus();
         return false;
   }

   if ( sel_month < thismonth ) {             
         cc_mon.focus();
         return false;
   }

   return true;
}

function isPassWordValid(formName,pwd1Temp,pwd2Temp)
{
   pwd1=getInputObject(formName,pwd1Temp).value;
   pwd2=getInputObject(formName,pwd2Temp).value;
   
   //the modify_user form does not require passwords unless they are being changed
   if(formName=='user_modify' && pwd1 == "" && pwd2=="") return true; 
   
   if(!(pwd1==pwd2))
   {
      alert("The password you provided does not match the confirmation password. Please try again!");
      return false;
   }

   if(pwd1.length < 4 || pwd2.length < 4)
   {
      alert("Passwords must be 4 to 8 characters long. Please try again!");
      return false;
   }

   if(pwd1.length > 8 || pwd2.length > 8)
   {
      alert("Passwords must be 4 to 8 characters long. Please try again!");
      return false;
   }
   return true;
}
theValidator = new validator();