// JavaScript Document
var mainurl="forum.php?option=";
var url="components/com_forum/viewforum.php?fid=";
var url_2="components/com_forum/viewtopic.php?fid=";
var url_1="components/com_forum/com_forum.php";
var xmlhttp=CreateXmlHttpObject();

function CreateXmlHttpObject()
{var XMLHTTP=false;
 if (window.XMLHttpRequest) // if Mozilla, Safari etc
    {XMLHTTP = new XMLHttpRequest();
	}
 else if (window.ActiveXObject)
    { // if IE
     try {XMLHTTP = new ActiveXObject("Msxml2.XMLHTTP")
         } 
     catch (e)
         {try {XMLHTTP = new ActiveXObject("Microsoft.XMLHTTP")
              }
          catch (e){}
         }
    }
 return XMLHTTP;
}

function handleXmlHttpResponse()
{   if (xmlhttp.readyState!=4)
       {document.getElementById('main_prod_price').innerHTML="";
       }
    if (xmlhttp.readyState==4)
       {if (xmlhttp.status==200)
           { var results=xmlhttp.responseText;
             document.getElementById('main_prod_price').innerHTML =results;
		   }
		else
           {document.getElementById('main_prod_price').innerHTML='$';
           }
       }
}



function calculateProdOpt(product_id,isSeasonal)
{var forms=new Array();
 var totList = document.getElementById('totalOpts').firstChild.nodeValue;
 totList = parseInt(totList);
 //alert (totList);
 //return false;
 for (i=1;i<=totList;i++)
     {var nameList = 'opt_'+i;
	  forms.push(nameList);
	 }
 var strTmp='';	 
 for (i=0;i<forms.length;i++)
     {var sel=document.getElementById(forms[i]);
	  var opt=sel.options[sel.selectedIndex];
	  strTmp+=opt.value+'_____';
	 };
 strTmp = encodeBase64(strTmp);	 
 //alert (opt.value);
 var url_userdrink="/calculateProdPrice.php?product_id="+product_id+"&isseasonal="+isSeasonal+"&opts="+strTmp;
 //alert (url_userdrink);
 xmlhttp.open('GET',url_userdrink,'true');
 xmlhttp.onreadystatechange=handleXmlHttpResponse;
 xmlhttp.send(null);
 return false;
 
}



function validateOptForm() {
  var totList = document.getElementById('totalOpts').firstChild.nodeValue;
  totList = parseInt(totList);

  var startValue = 1;

  //alert (totList);
  //return false;

  var includedBreeds;
  var otherBreeds;
  // Hard-code the complex logic for "Included Breeds" and "Other Breeds"
  if ((includedBreeds = document.getElementById("opt_1")) && (otherBreeds = document.getElementById("opt_2"))) {
    if (includedBreeds.name == "prod_opt[Included Breeds]" && otherBreeds.name == "prod_opt[Other Breeds]") {
	var includedValue = includedBreeds.options[includedBreeds.selectedIndex].value;
	var otherValue = otherBreeds.options[otherBreeds.selectedIndex].value;

	if (includedValue == "" && otherValue == "") {
	  alert("Please choose a breed");
	  otherBreeds.focus();
	  return false;
	} else if (includedValue != "" && otherValue != "") {
	  alert("Please select only one breed.");
          otherBreeds.focus();
	  return false;
	}
	startValue = 3; // Skip the first two in the logic below, since we've already validated them.
    }
  }

  for (i = startValue; i <= totList; i++) {
   var nameList = 'opt_'+i;
   var sel=document.getElementById(nameList);
   var opt=sel.options[sel.selectedIndex];

   if (opt.value == '') {
     alert ("Please select an option");
     sel.focus();
     return false;
   }
  }
  document.getElementById('cart').submit();
  return true;	 
}  



/*
 FUNCTIONS FOR ENCODE/DECODE IN BASE 64 STRING
*/

function urlDecode(str){
    str=str.replace(new RegExp('\\+','g'),' ');
    return unescape(str);
}
function urlEncode(str){
    str=escape(str);
    str=str.replace(new RegExp('\\+','g'),'%2B');
    return str.replace(new RegExp('%20','g'),'+');
}

var END_OF_INPUT = -1;

var base64Chars = new Array(
    'A','B','C','D','E','F','G','H',
    'I','J','K','L','M','N','O','P',
    'Q','R','S','T','U','V','W','X',
    'Y','Z','a','b','c','d','e','f',
    'g','h','i','j','k','l','m','n',
    'o','p','q','r','s','t','u','v',
    'w','x','y','z','0','1','2','3',
    '4','5','6','7','8','9','+','/'
);

var reverseBase64Chars = new Array();
for (var i=0; i < base64Chars.length; i++){
    reverseBase64Chars[base64Chars[i]] = i;
}

var base64Str;
var base64Count;
function setBase64Str(str){
    base64Str = str;
    base64Count = 0;
}
function readBase64(){    
    if (!base64Str) return END_OF_INPUT;
    if (base64Count >= base64Str.length) return END_OF_INPUT;
    var c = base64Str.charCodeAt(base64Count) & 0xff;
    base64Count++;
    return c;
}
function encodeBase64(str){
    setBase64Str(str);
    var result = '';
    var inBuffer = new Array(3);
    var lineCount = 0;
    var done = false;
    while (!done && (inBuffer[0] = readBase64()) != END_OF_INPUT){
        inBuffer[1] = readBase64();
        inBuffer[2] = readBase64();
        result += (base64Chars[ inBuffer[0] >> 2 ]);
        if (inBuffer[1] != END_OF_INPUT){
            result += (base64Chars [(( inBuffer[0] << 4 ) & 0x30) | (inBuffer[1] >> 4) ]);
            if (inBuffer[2] != END_OF_INPUT){
                result += (base64Chars [((inBuffer[1] << 2) & 0x3c) | (inBuffer[2] >> 6) ]);
                result += (base64Chars [inBuffer[2] & 0x3F]);
            } else {
                result += (base64Chars [((inBuffer[1] << 2) & 0x3c)]);
                result += ('=');
                done = true;
            }
        } else {
            result += (base64Chars [(( inBuffer[0] << 4 ) & 0x30)]);
            result += ('=');
            result += ('=');
            done = true;
        }
        lineCount += 4;
        if (lineCount >= 76){
            result += ('\n');
            lineCount = 0;
        }
    }
    return result;
}

function readReverseBase64(){   
    if (!base64Str) return END_OF_INPUT;
    while (true){      
        if (base64Count >= base64Str.length) return END_OF_INPUT;
        var nextCharacter = base64Str.charAt(base64Count);
        base64Count++;
        if (reverseBase64Chars[nextCharacter]){
            return reverseBase64Chars[nextCharacter];
        }
        if (nextCharacter == 'A') return 0;
    }
    return END_OF_INPUT;
}

function ntos(n){
    n=n.toString(16);
    if (n.length == 1) n="0"+n;
    n="%"+n;
    return unescape(n);
}

function decodeBase64(str){
    setBase64Str(str);
    var result = "";
    var inBuffer = new Array(4);
    var done = false;
    while (!done && (inBuffer[0] = readReverseBase64()) != END_OF_INPUT
        && (inBuffer[1] = readReverseBase64()) != END_OF_INPUT){
        inBuffer[2] = readReverseBase64();
        inBuffer[3] = readReverseBase64();
        result += ntos((((inBuffer[0] << 2) & 0xff)| inBuffer[1] >> 4));
        if (inBuffer[2] != END_OF_INPUT){
            result +=  ntos((((inBuffer[1] << 4) & 0xff)| inBuffer[2] >> 2));
            if (inBuffer[3] != END_OF_INPUT){
                result +=  ntos((((inBuffer[2] << 6)  & 0xff) | inBuffer[3]));
            } else {
                done = true;
            }
        } else {
            done = true;
        }
    }
    return result;
}

var digitArray = new Array('0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f');
function toHex(n){
    var result = ''
    var start = true;
    for (var i=32; i>0;){
        i-=4;
        var digit = (n>>i) & 0xf;
        if (!start || digit != 0){
            start = false;
            result += digitArray[digit];
        }
    }
    return (result==''?'0':result);
}

function pad(str, len, pad){
    var result = str;
    for (var i=str.length; i<len; i++){
        result = pad + result;
    }
    return result;
}