function Validator(frmname)
{
  this.formobj=document.forms[frmname];
	if(!this.formobj)
	{
	  alert("BUG: could not 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,bgcolor)
{
 if(!this.formobj)
 {
  alert("BUG: the form object is not set properly");
  return;
 }//if
 var itemobj = this.formobj[itemname];
 if(!itemobj)
 {
  alert("BUG: Could not get the input object named: "+itemname);
  return;
 }
 if(!itemobj.validationset)
 {
  itemobj.validationset = new ValidationSet(itemobj);
 }
 itemobj.validationset.add(descriptor,errstr,bgcolor);
}
function ValidationDesc(inputitem,desc,error,bgcolor)
{
  this.desc=desc;
  this.error=error;
  this.itemobj = inputitem;
  this.validate=vdesc_validate;
  this.background=bgcolor;
  this.itemobj.style.backgroundColor = this.background;
}
function vdesc_validate()
{
 this.itemobj.style.backgroundColor = this.background;
 if(!V2validateData(this.desc,this.itemobj,this.error))
 {
  this.itemobj.style.backgroundColor = "#ffcc00";
  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,bgcolor)
{
 this.vSet[this.vSet.length] = new ValidationDesc(this.itemobj,desc,error,bgcolor);
}
function vset_validate()
{
 for(var itr=0;itr<this.vSet.length;itr++)
 {
  if(!this.vSet[itr].validate())
  {
   return false;
  }
 }
 return true;
}
function daysInMonth(month, year) {
 var result = 31;
 if (month == 4 || month == 6 || month == 9 || month == 11) {
  result = 30;
 } else {
  if (month == 2) {
   result = (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
  }
 }
 return result;
}
function validateDate(fields) {
 var flds = fields.split(",");
 if (flds.length != 3) {
 	alert("Date validation error\nFields string must have three parts.");
 	return false;
 }
 var yearobj = document.getElementById(flds[0]);
 if (yearobj.selectedIndex == 0) {
 	return false;
 }
 var monthobj = document.getElementById(flds[1]);
 if (monthobj.selectedIndex == 0) {
 	return false;
 }
 var dayobj = document.getElementById(flds[2]);
 if (dayobj.selectedIndex == 0) {
 	return false;
 }
 var myDay = parseInt(dayobj.options[dayobj.selectedIndex].text);
 var myMonth = parseInt(monthobj.selectedIndex); // use index instead of month name
 var myYear = parseInt(yearobj.options[yearobj.selectedIndex].text);
 if (myMonth < 1 || myMonth > 12) {
  return false;
 }
 if (myDay < 1 || myDay > daysInMonth(myMonth, myYear)) {
  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 "opt":
        case "optional": 
         {
           // does no validation at all 
           break;             
         }//case required 
        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 "date":
         {
	        if (validateDate(cmdvalue) == false) {
               if(!strError || strError.length ==0) 
               { 
                 strError = objValue.name + " : value must be " + cmdvalue; 
               }//if               
               alert(strError); 
               return false;                 
	        }
         	break;
         } 
        case "checkbox":
         {
         	if (objValue.type != "checkbox") {
         		alert("Form Error: checkbox validation for a form field of type:'" + objValue.type + "'");
         		return false;
         	}
         	if (!objValue.checked.match(cmdvalue)) {
               if(!strError || strError.length ==0) 
               { 
                 strError = objValue.name + " : value must be " + cmdvalue; 
               }//if               
               alert(strError); 
               return false;                 
         	}
         	break;
         }
        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 
    }//switch 
    return true; 
}


function jump(from, to, length)
{
	if(from.value.length == length)
	{
	to.focus();
	}
}

function creditCheck()
{
	if(document.forms["Application"].creditcheck.checked==false)
	{
	alert("Sorry we are unable to help without permission to check your credit report.");
	}
}