// [dFilter] - A Numerical Input Mask for JavaScript
// Written By Dwayne Forehand - March 27th, 2003
// Enhanced By Yigit Ozgul - 07-07-2006
// Please reuse & redistribute while keeping this notice.

var dFilterStep;

function dFilterStrip (dFilterTemp, dFilterMask)
{
    dFilterMask = replace(dFilterMask,'#','');
    for (dFilterStep = 0; dFilterStep < dFilterMask.length++; dFilterStep++)
		{
		    dFilterTemp = replace(dFilterTemp,dFilterMask.substring(dFilterStep,dFilterStep+1),'');
		}
		return dFilterTemp;
}

function dFilterMax (dFilterMask)
{
 		dFilterTemp = dFilterMask;
    for (dFilterStep = 0; dFilterStep < (dFilterMask.length+1); dFilterStep++)
		{
		 		if (dFilterMask.charAt(dFilterStep)!='#')
				{
		        dFilterTemp = replace(dFilterTemp,dFilterMask.charAt(dFilterStep),'');
				}
		}
		return dFilterTemp.length;
}

function dFilter (e, textbox, dFilterMask)
{
        key = (e.which || e.keyCode);
        if(e.which && key.toString()=="8")
            return;
        dFilterNum = dFilterStrip(textbox.value, dFilterMask);
		
		if (key==9)
		{
		    return true;
		}
		else if (key==8&&dFilterNum.length!=0)
		{
		 	 	dFilterNum = dFilterNum.substring(0,dFilterNum.length-1);
		}
 	 else if ( ((key>47&&key<58)||(key>95&&key<106)) && dFilterNum.length<dFilterMax(dFilterMask) )
      {
      if(key>95&&key<106){key-=48;}
        dFilterNum=dFilterNum+String.fromCharCode(key);
      }

      var dFilterFinal='';

		var dFilterFinal='';
    for (dFilterStep = 0; dFilterStep < dFilterMask.length; dFilterStep++)
		{
        if (dFilterMask.charAt(dFilterStep)=='#')
				{
					  if (dFilterNum.length!=0)
					  {
				        dFilterFinal = dFilterFinal + dFilterNum.charAt(0);
					      dFilterNum = dFilterNum.substring(1,dFilterNum.length);
					  }
				    else
				    {
				        dFilterFinal = dFilterFinal + "";
				    }
				}
		 		else if (dFilterMask.charAt(dFilterStep)!='#')
				{
				    dFilterFinal = dFilterFinal + dFilterMask.charAt(dFilterStep); 			
				}
		}

		textbox.value = dFilterFinal;
		
    return false;
}

function replace(fullString,text,by) {
// Replaces text with by in string
    var strLength = fullString.length, txtLength = text.length;
    if ((strLength == 0) || (txtLength == 0)) return fullString;

    var i = fullString.indexOf(text);
    if ((!i) && (text != fullString.substring(0,txtLength))) return fullString;
    if (i == -1) return fullString;

    var newstr = fullString.substring(0,i) + by;

    if (i+txtLength < strLength)
        newstr += replace(fullString.substring(i+txtLength,strLength),text,by);

    return newstr;
}

function pasteText(textbox, dFilterMask)
{
    //var clpData = clipboardData.getData("Text").replace(/[^0-9]/g,'');
    textbox.value = textbox.value.replace(/[^0-9]/g,'');
    if((textbox.value.length == 10 && dFilterMask.charAt(2) != textbox.value.charAt(2)) || (textbox.value.length != 10 && isNaN(textbox.value)))
    {
        textbox.value = "";
        return false;
    }
    else
        return dFilter(32,textbox,dFilterMask);
}
function setCursorPosition(oInput,oStart,oEnd) 
     {
   	       if( oInput.setSelectionRange ) {
    	         oInput.setSelectionRange(oStart,oEnd);
             } 
             else if( oInput.createTextRange ) {
                var range = oInput.createTextRange();
                range.collapse(true);
                range.moveEnd('character',oEnd);
                range.moveStart('character',oStart);
                range.select();
             }
       }