//Special thanks to MajidOnline.com!
function storeCaret(textEl) {
	if (textEl.createTextRange) textEl.caretPos = document.selection.createRange().duplicate();

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

// Farsi keyboard map based on ISIRI-2901
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, 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 changeLang() {
    if (lang == 0) {
    lang = 1;
    return true;
  }
  else {
    lang = 0;
    return true;
  }
}

function FKeyDown (txtFrm){
 var key = window.event.keyCode;
 if (key == 145){
    if (lang == 0) {
      lang = 1;
      return true;
    }
    else {
      lang = 0;
      return true;
    }

}

}
function FKeyPress(txtFrm) {
   var key = window.event.keyCode;

  if (key == 13) { window.event.keyCode = 13; return true; }

   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];
     if (farsikey[key - 0x0020] == 92) {
        window.event.keyCode = 0x0698;
     }
     if (farsikey[key - 0x0020] == 8205) {
        window.event.keyCode = 0x067E;
     }
   }
   return true;
}

function change(obj){
if (lang==0)
lang=1
else
lang=0;
obj.focus();
}