/*******************************************************************/      
      
// Original idea is from:      
// http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/farsitools/#dirlist and      
// http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/farsitools/php/date/scripts/
// CODES HAVE BEEN EXPANDED BY PersianBlog.com
// CODE HAS BEEN EXPANDED BY Ehsan Akhgari (www.farda-tech.com)
      
var langFarsi = true;
var farsikey = [	// Farsi keyboard map based on Iran Popular Keyboard Layout      
	0x0020, 0x0021, 0x061B, 0x066B, 0x00A4, 0x066A, 0x060C, 0x06AF,
	0x0029, 0x0028, 0x002A, 0x002B, 0x0648, 0x002D, 0x002E, 0x002F,
	0x06F0, 0x06F1, 0x06F2, 0x06F3, 0x06F4, 0x06F5, 0x06F6, 0x06F7,
	0x06F8, 0x06F9, 0x003A, 0x06A9, 0x003E, 0x003D, 0x003C, 0x061F,
	0x066C, 0x0624, 0x200C, 0x0698, 0x064A, 0x064D, 0x0625, 0x0623,
	0x0622, 0x0651, 0x0629, 0x00BB, 0x00AB, 0x0621, 0x004E, 0x005D,
	0x005B, 0x0652, 0x064B, 0x0626, 0x064F, 0x064E, 0x0056, 0x064C,
	0x0058, 0x0650, 0x0643, 0x062C, 0x0698, 0x0686, 0x00D7, 0x0640,
	0x067E, 0x0634, 0x0630, 0x0632, 0x06CC, 0x062B, 0x0628, 0x0644,
	0x0627, 0x0647, 0x062A, 0x0646, 0x0645, 0x0626, 0x062F, 0x062E,
	0x062D, 0x0636, 0x0642, 0x0633, 0x0641, 0x0639, 0x0631, 0x0635,
	0x0637, 0x063A, 0x0638, 0x007D, 0x007C, 0x007B, 0x007E
];            
            
function FKeyDown() {
	if (window.event.shiftKey && window.event.altKey) {
		changeLanguage();
		return false;
	}
	return true;
}

function FKeyPress() {
   var key = window.event.keyCode;
   if (key < 0x0020 || key >= 0x00FF)
      return;
   if (langFarsi) {
      var el = event.srcElement;
      var objRegExp = new RegExp("[A-Za-z\x27\x2C\x3B\x5B\x5C\x5D\x7C]");
      var validate_key = objRegExp.test(String.fromCharCode(key));
      if ((validate_key || (key==92)) && (key != 0x200C) && (el.value.lastIndexOf(String.fromCharCode(1740)) == el.value.length - 1) && el.value.length > 0) {
         el.value = el.value.slice(0, -1);
         el.value += String.fromCharCode(1610);
      }
      if (key == 0x0020 && window.event.shiftKey)
         window.event.keyCode = 0x200C;
      else
         window.event.keyCode = farsikey[key - 0x0020];
   }
   return true;
}

if (document.images)
{
	img_fa = new Image(75,15)
	img_fa.src = "/images/fa.gif"
	img_en = new Image(75,15)
	img_en.src = "/images/en.gif"
}

function insertKeyboardSelector()
{
	window.document.write(
		"<span dir=\"rtl\" lang=\"fa\" style=\"line-height: 17px;\"><b>&#1578;&#1594;&#1610;&#1610;&#1585; &#1586;&#1576;&#1575;&#1606;:</b> " +
		"<a href=\"javascript: void(0);\" onclick=\"changeLanguage();return false;\"" +
		" class=\"lang_image\"><img name=\"langID\" dir=\"rtl\" src=\"/images/fa.gif\" width=\"75\"" +
		" height=\"15\" border=\"0\" alt=\"&#1575;&#1606;&#1578;&#1582;&#1575;&#1576; &#1586;&#1576;&#1575;&#1606;\" /></a></span>" );
}

function updateKeyboardSelector()
{
	if (typeof(MM_swapImage) == "function")
		MM_swapImage("langID","","/images/"+(langFarsi ? "fa" : "en")+".gif",1);
}

function changeLanguage()
{
	langFarsi = !langFarsi;
	updateKeyboardSelector();
}