var gsfarsikey = [	// 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 FKeyPress() {
   var key = window.event.keyCode;
   if (key < 0x0020 || key >= 0x00FF) 
      return;
      
   var el = event.srcElement;
   
   if (el.lang=='f') {
      var ValChar=String.fromCharCode(key);
      
      var validate="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ[];,'`\\"
          
      if (validate.indexOf(ValChar) != -1 ) // Detect persian letter
      if (el.value.charCodeAt(el.value.length-1) == 0x06cc)  // Replace persian ye if needed
      {
         el.value = el.value.slice(0, -1);
         el.value += String.fromCharCode(0x064a); // Use arabic ye
      }
      if (key == 0x0020 && window.event.shiftKey)
         window.event.keyCode = 0x200C;
      else 
	 window.event.keyCode = gsfarsikey[key - 0x0020];
	 
   }
  return true;
}


function Changelang(whatimage,what,imageEN,imageFA) {
            if(what.lang == 'f') {
                what.onkeypress=null;
                what.lang ='e';
                whatimage.src=imageEN;
                whatimage.title='Change language to persian' 
            }
            else {
                what.onkeypress=FKeyPress;
                what.lang ='f';
               whatimage.src=imageFA;
                whatimage.title='Change language to english' 
            }
            what.focus();
        }
			
function appendSelect(theSel, newText, newValue, Helper)
{
  if(newValue == 0) return;
  if (theSel.length == 0) {
    var newOpt1 = new Option(newText, newValue);
    theSel.options[0] = newOpt1;
    theSel.selectedIndex = 0;
    Helper.value = newText;
  } else if (theSel.selectedIndex != -1) {
  	Helper.value += "?"+newText;
    var selText = new Array();
    var selValues = new Array();
    var selIsSel = new Array();
    var newCount = -1;
    var newSelected = -1;
    var i;
    for(i=0; i<theSel.length; i++)
    {
      newCount++;
      selText[newCount] = theSel.options[i].text;
      selValues[newCount] = theSel.options[i].value;
      selIsSel[newCount] = theSel.options[i].selected;
      
      if(selText[newCount] == newText) return;
      
      if (newCount == theSel.selectedIndex) {
        newCount++;
        selText[newCount] = newText;
        selValues[newCount] = newValue;
        selIsSel[newCount] = false;
        newSelected = newCount - 1;
      }
    }
    for(i=0; i<=newCount; i++)
    {
      var newOpt = new Option(selText[i], selValues[i]);
      theSel.options[i] = newOpt;
      theSel.options[i].selected = selIsSel[i];
    }
   }
}


function removeselect(theSel, Helper)
{
  var selIndex = theSel.selectedIndex;
  if (selIndex != -1) {
    for(i=theSel.length-1; i>=0; i--)
    {
      if(theSel.options[i].selected)
      {
        theSel.options[i] = null;
      }
    }
    Helper.value = "";
    	
    for(i=0; i<=theSel.length-1; i++)
    {
      Helper.value += (i==0 ? "" : "?") +theSel.options[i].text;
    }

    	
    if (theSel.length > 0) {
      theSel.selectedIndex = selIndex == 0 ? 0 : selIndex - 1;
    }
  }
}