// formvalidate.js
// lre 2001

function checkState(billOrShip)
{
   var isValidState = false;
   
   if (billOrShip == 'bill') {
      if (document.billship.billing_country.value == "US" || document.billship.billing_country.value == "CA") {
         if (document.billship.billing_state.selectedIndex == 0) {
            isValidState = true;
         }
      }
   } else if (billOrShip == 'ship') {

      if (document.billship.shipping_country.value == "US" || document.billship.shipping_country.value == "CA") {
         if (document.billship.shipping_state.selectedIndex == 0) {
            isValidState = true;
         }
      }
   }   
   return isValidState;
}


function checkPhone(billOrShip)
{
   var isValidPhone = false;
   
   if (billOrShip == 'bill') {
      if (document.billship.billing_country.value == "US" || document.billship.billing_country.value == "CA") {
         if (StripDigits(document.billship.billing_phone.value).length < 10) {
            isValidPhone = true;
         }
      }
   } else if (billOrShip == 'ship') {

      if (document.billship.shipping_country.value == "US" || document.billship.shipping_country.value == "CA") {
         if (StripDigits(document.billship.shipping_phone.value).length < 10) {
            isValidPhone = true;
         }
      }
   }   
   return isValidPhone;
}


function checkZip(billOrShip)
{
   var zip;
   var cntry;
   if (billOrShip == 'bill') {
      zip = document.billship.billing_zip.value.toLowerCase();
      cntry = document.billship.billing_country.value.toLowerCase();
   }
   else if (billOrShip == 'ship') {
      zip = document.billship.shipping_zip.value.toLowerCase();
      cntry = document.billship.shipping_country.value.toLowerCase();
   }

   var isValidZip = false;
   var newZip="";
   var chr;
   for(i=0;i<zip.length;i++)
   {
      chr=zip.charAt(i);
      if(chr != " ")
         newZip=newZip + chr; 
   }

   if (cntry == 'us') {
      if (StripDigits(zip).length < 5) {
         isValidZip = true;
      } 
   } else if (cntry == 'ca') {
      if (!isCanadianZip(newZip)) {
         isValidZip = true;
      }
   }
   return isValidZip;

}

function isCanadianZip(zipCode)
{
     if ( (zipCode == '') || (zipCode.length != 6) )  
       return false;
     else if ( (zipCode.charAt(0) < "a"  || zipCode.charAt(0) > "z") || (zipCode.charAt(2) < "a"  || zipCode.charAt(2) > "z") || (zipCode.charAt(4) < "a"  || zipCode.charAt(4) > "z") ) 
        return false;
     else if ( (zipCode.charAt(1) < "0"  || zipCode.charAt(1) > "9") || (zipCode.charAt(3) < "0"  || zipCode.charAt(3) > "9") || (zipCode.charAt(5) < "0"  || zipCode.charAt(5) > "9") ) 
        return false;
     else
     return true;
}



function StripChrs(s, chrs)
{   var i;
    var returnString = "";

    for (i = 0; i < s.length; i++)
    {
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (chrs.indexOf(c) != -1) returnString += c;
    }

    return returnString;
}
function StripDigits(s)
{
	return StripChrs(s, "0123456789");
}
function IsCharInString(c, s)
{   for (i = 0; i < s.length; i++)
    {   if (s.charAt(i) == c) return true;
    }
    return false
}
function EndsWith( s, e )
{
	var end = s.substr(s.length-e.length, e.length);
	if ( end.toLowerCase() == e.toLowerCase() )
    	return true;
    return false;
}
function getFront(mainStr,searchStr){
    foundOffset = mainStr.indexOf(searchStr)
    if (foundOffset == -1) {
        return null
    }
    return mainStr.substring(0,foundOffset)
}
function getEnd(mainStr,searchStr) {
    foundOffset = mainStr.indexOf(searchStr)
    if (foundOffset == -1) {
        return null
    }
    return mainStr.substring(foundOffset+searchStr.length,mainStr.length)
}
function replaceString(mainStr,searchStr,replaceStr)
{
    var front = getFront(mainStr,searchStr);
    var end = getEnd(mainStr,searchStr);
    if (front != null && end != null)
    {
        return front + replaceStr + end;
    }
    return mainStr;
}
function IsLetter(c)
{   return ( ((c >= "a") && (c <= "z")) || ((c >= "A") && (c <= "Z")) )
}
function IsDigit(c)
{   return ((c >= "0") && (c <= "9"))
}
function IsLetterOrDigit(c)
{   return (IsLetter(c) || IsDigit(c))
}
function IsAlpha( str )
{	if (str+"" == "undefined" || str+"" == "null" || str+"" == "")
		return false;
	str += "";
  	for (i = 0; i < str.length; i++)
    {	if ( !IsLetter(str.charAt(i)) && str.charAt(i)!=' ' )
            return false;
	}
	return true;
}
function IsAlpha2( str )
{	if (str+"" == "undefined" || str+"" == "null" || str+"" == "")
		return false;
	str += "";
  	for (i = 0; i < str.length; i++)
    {	if ( !IsLetterOrDigit(str.charAt(i)) && str.charAt(i)!=' ' )
            return false;
	}
	return true;
}
function IsMatch( str1, str2 )
{	if (str1+"" == "undefined" || str1+"" == "null" || str1+"" == "")
		return false;
	if (str2+"" == "undefined" || str2+"" == "null" || str2+"" == "")
		return false;
	if (str1.length != str2.length)
		return false;

	var isValid = true;

	str1 += "";
	str2 += "";
  	for (i = 0; i < str1.length; i++)
  	{
		if ( !(str1.charAt(i) == str2.charAt(i)) )
		{
         isValid = false;
         break;
      }
   }
	return isValid;
}
function IsNull( val )
{ 	if (val+"" == "null")
 		return true;
	return false;
}
function IsUndef( val )
{ 	if (val+"" == "undefined")
 		return true;
	return false;
}
function IsBlank( str )
{ 	if ( IsNull(str) || IsUndef(str) || (str == "") )
 		return true;
	return false;
}
function IsValidEmail( str ) {
	if (str+"" == "undefined" || str+"" == "null" || str+"" == "")
		return false;

	var isValid = true;

	str += "";

	namestr = str.substring(0, str.indexOf("@"));
	domainstr = str.substring(str.indexOf("@")+1, str.length);
  	if (IsBlank(str) || (namestr.length == 0) ||
			(domainstr.indexOf(".") <= 0) ||
			(domainstr.indexOf("@") != -1) ||
			!IsAlpha(str.charAt(str.length-1)))
		isValid = false;

   	return isValid;
}
function IsChecked( thegroup )
{
	if ( thegroup.length > 0)
    {
	    for (i=0; i<thegroup.length; i++)
	    {   if ( thegroup[i].checked  )
	            return true;
	    }
    }
    else
		if ( thegroup.checked )
        	return true;
 	return false;
}
function IsURL( str ) {
	if (str+"" == "undefined" || str+"" == "null" || str+"" == "")
		return false;

	str += "";
    var validchrs = "./+-?#=%";

  	for (x = 0; x < str.length; x++)
    {
		if ( !IsLetterOrDigit(str.charAt(x)) &&
			 !IsCharInString(str.charAt(x),validchrs) )
	        return false;
   }
	return true;
}
function IsImage( name )
{
	if ( IsBlank(name) )
    	return true;
	if ( EndsWith(name,'.jpg') ||
    	 EndsWith(name,'.gif') )
    	return true;
    return false;
}

var errstring;
var errselect;
var doformvalidate = true;
function AddError(errstr, errsel) {
	if ( doformvalidate==false ) return;
	if ( IsBlank(errstring) && !IsNull(errstr) )
		errstring = errstr;
	else
		errstring += "\n\n" + errstr;
	if ( IsBlank(errselect) && !IsNull(errsel) )
		errselect = errsel;
}

function FormSubmit( comval, myform )
{
	if (IsBlank(myform))
    	myform=document.forms[0];
    else if ( !myform.submit && myform.length )
    	myform=eval("document."+myform);

	if (!IsBlank(comval))
    {
    	if ( IsCharInString('.', comval) ) // Is set
			myform.action = comval;
        else
        {	// Is append
	        if (IsCharInString('?', myform.action))
	            myform.action = getFront(myform.action,'?');
	        myform.action += '?'+comval;
        }
    }
    myform.submit();
}

function FormReset( )
{
    document.forms[0].reset();
}

function SetFormValidate( onoff )
{
    doformvalidate = onoff;
}

function RedirectURL( url )
{
	window.location = url;
    return false;
}