var lang = 1;	// 1: Farsi, 0: English

// Farsi keyboard map based on Iran Popular Keyboard Layout
//   0x06F8, 0x06F9, 0x003A, 0x06A9, 0x003E, 0x003D, 0x003C, 0x061F,

var farsikey = [
   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, 0x0643, 0x003E, 0x003D, 0x003C, 0x061F,
   0x066C, 0x0624, 0x200C, 0x0698, 0x06CC, 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, 0x064A, 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 HsetLang()
{
     if (lang == 0) 
         lang = 1
      else 
         lang = 0;
}

// on Alt+Shift, switch language
function setLang(siteAddress,next,hasEditor)
{
	if(hasEditor)
	{
		ChangeLanguage()
		 if (lang == 0) {
			 lang = 1;
			window.defaultStatus = "Farsi Mode";
			document.all.img2.src= siteAddress + '/images/LANG_FA.gif' ;
		  }
		  else {
			 lang = 0;
			 window.defaultStatus = "English Mode";
			 document.all.img2.src= siteAddress + '/images/LANG_EN.gif' ;
		  }
	
	}
	else
	{
		 if (lang == 0) 
		 {
			 lang = 1;
			window.defaultStatus = "Farsi Mode";
			document.all.img1.src= siteAddress + '/images/LANG_FA.gif' ;
			document.all.img2.src= siteAddress + '/images/LANG_FA.gif' ;
		  }
		  else 
		  {
			 lang = 0;
			 window.defaultStatus = "English Mode";
			 document.all.img1.src= siteAddress + '/images/LANG_EN.gif' ;
			 document.all.img2.src= siteAddress + '/images/LANG_EN.gif' ;
		  }
	}
	  if(next) next.focus();
}

function setLangRgs(siteAddress,next)
{
	 if (lang == 0) 
	 {
		 lang = 1;
		window.defaultStatus = "Farsi Mode";
		document.all.img1.src= siteAddress + '/images/LANG_FA.gif' ;
		document.all.img2.src= siteAddress + '/images/LANG_FA.gif' ;
		document.all.img3.src= siteAddress + '/images/LANG_FA.gif' ;		
	  }
	  else 
	  {
		 lang = 0;
		 window.defaultStatus = "English Mode";
		 document.all.img1.src= siteAddress + '/images/LANG_EN.gif' ;
		 document.all.img2.src= siteAddress + '/images/LANG_EN.gif' ;
 		 document.all.img3.src= siteAddress + '/images/LANG_EN.gif' ;
	  }

	if(next) next.focus();
}

function setLangAgr(siteAddress,next)
{
	 if (lang == 0) 
	 {
		 lang = 1;
		window.defaultStatus = "Farsi Mode";
		document.all.img1.src= siteAddress + '/images/LANG_FA.gif' ;
	  }
	  else 
	  {
		 lang = 0;
		 window.defaultStatus = "English Mode";
		 document.all.img1.src= siteAddress + '/images/LANG_EN.gif' ;
	  }

	if(next) next.focus();
}

function setLangHelp(siteAddress,next)
{
	 if (lang == 0) 
	 {
		 lang = 1;
		window.defaultStatus = "Farsi Mode";
		document.all.img1.src= siteAddress + '/images/HLANG_FA.gif' ;
	  }
	  else 
	  {
		 lang = 0;
		 window.defaultStatus = "English Mode";
		 document.all.img1.src= siteAddress + '/images/HLANG_EN.gif' ;
	  }

	if(next) next.focus();
}


// change the Farsi
function FKeyPress()
{
   var key = window.event.keyCode;
   // Avoid processing if control or higher than ASCII (i.e., in Arabic Windows)
   if (key < 0x0020 || key >= 0x00FF)
      return;
   if (lang == 1) { //If Farsi
      if (key == 0x0020 && window.event.shiftKey) // Shift-space -> ZWNJ
         window.event.keyCode = 0x200C;
      else
         window.event.keyCode = farsikey[key - 0x0020];
   }
   return true;
}


function LangFar (myobj)
{
       myobj.style.textAlign = "right";
       myobj.style.direction = "rtl";
       myobj.focus();
       lang = 1;
}


function LangEng (myobj)
{
       myobj.style.textAlign = "left";
       myobj.style.direction = "ltr";
       myobj.focus();
       lang = 0;
};


function registerForm(formID)
{
	var formObj = document.getElementById(formID);

	for(var i in formObj)
	{
		if(formObj[i] != null  &&  typeof formObj[i] == "object")
		{
			var type = formObj[i].type;
			if(type == "text"  ||  type == "textarea")
			{
				formObj[i].onfocusin = handleFocus;
			}
		}
	}
};


function handleFocus()
{
	if(this != document.all.img1  &&  this != document.all.img2)
	{
		 _lastFocus = this;
	}
};

_lastFocus = this;