function NumericInput_CanSelect(o) {
  return (typeof(o.createTextRange)!='undefined' || typeof(o.selectionStart)!='undefined');
}

function NumericInput_KeyUp(o, e) {
  if(NumericInput_CanSelect(o)) {
  }
}

function NumericInput_Blur(o, e, multiplier) {
	var s = o.value.replace(".", "");
	var s = s.replace(",", ".");
	var f = parseFloat(s);
	if(s==f) {
		f = f*multiplier;
		s = f.toString();
		s.replace(".", ",");
		var commaPos = s.indexOf(',');
		var j = 0;
		if(commaPos < 0) commaPos = s.length;
	  for(var l=commaPos;l>0;l--) {
			if(j>2) {
				s = s.substring(0,l) + '.' + s.substring(l);
				j=0;
			}
			j++;
		}
		o.value = s;
	}
	return true;
}

function NumericInput_KeyDown(o, e, separate, allowComma) {
  o.onkeypress = o.onkeyup = null;
  if(!e) e = window.event;
  var code = e.keyCode;
  if(!code && e.which) code = e.which;
  if(code>=96 && code<=105) code-=48;
  var preventDefault = ((code > 57 && (code!=110 && code!=188)) || code == 32 || (code >= 48 && e.shiftKey));
  if(!allowComma && (code==188 || code==110)) preventDefault = true;
  if(!preventDefault) {
    if(separate) {
			if(NumericInput_CanSelect(o)) {
				if(((code >=48 && code <= 57) || code == 8 || code == 46 || code == 110 || code == 188)) {
					preventDefault = NumericInput_FormatNumber(o, code, allowComma);
				}
			}
    }
  }
  if(preventDefault) {
    o.onkeypress = o.onkeyup = function(e) {
      if(!e) e = window.event;
      return false;
    };
    return false;
  }
  return true;
}

function NumericInput_FormatNumber(o, code, allowComma) {
  if(!allowComma && (code==188 || code==110)) return true;
  var preventDefault = false;
  var startPos = getSelectionStart(o);
  var endPos = getSelectionEnd(o);
  var s = o.value;

  //delete all non numbers except one optional comma
  var i = o.value.length-1;
  while(i>=0) {
    var c = s.charAt(i);
    if(c < '0' || c > '9') {
      if(c==',' && allowComma == true) {
        allowComma = false;
      } else {
        s = s.substring(0, i) + s.substring(i + 1);
        if(startPos>i) startPos--;
        if(endPos>i) endPos--;
      }
    }
    i--;
  }
  if(startPos == 1 && s.charAt(0)=='0' && code==48) preventDefault=true;
  if(startPos == 0 && s.length>0 && code==48) preventDefault=true;
  while(s.length>0 && s.charAt(0)=='0' && s.charAt(1)!=',' && code!=48) {
    s = s.substring(1);
    startPos--;
    endPos--;
  }
  if(code==188 || code ==110) 
  {
    preventDefault = !allowComma;
    if(allowComma && startPos == 0) {
      s = '0' + s;
      startPos++;
      endPos++;
    } 
  }
  //document.getElementById('testRaw').innerHTML = s;
  var s2 = s.substring(0, startPos);
  for(var k=startPos;k<endPos;k++)
    s2+='B';
  s2+=s.substring(endPos);
  var s3 = s2;
  var s4 = s;
  if(code >=48 && code <= 57 && !preventDefault) {
    s3 = s3.substring(0, startPos) + 'A' + s3.substring(startPos);
    s4 = s4.substring(0, startPos) + 'A' + s4.substring(startPos);
  }
  if(code == 8 && startPos == endPos && !preventDefault) {
    if(s3.charAt(startPos-1)==',') {
      s3 = s3.substring(0,startPos-1) + 'B' + s3.substring(startPos);
    } else {
      s3 = s3.substring(0, startPos) + 'C' + s3.substring(startPos);
      s4 = s4.substring(0, startPos) + 'C' + s4.substring(startPos);
    }
  }
  if(code ==46 && startPos == endPos && !preventDefault) {
    if(s3.charAt(startPos)==',') {
      s3 = s3.substring(0,startPos) + 'B' + s3.substring(startPos+1);
    } else {
      s3 = s3.substring(0, startPos+1) + 'C' + s3.substring(startPos+1);
      s4 = s4.substring(0, startPos+1) + 'C' + s4.substring(startPos+1);
    }
  }
  //document.getElementById('testPos').innerHTML = s2;
  //document.getElementById('testPos2').innerHTML = s3;
  //document.getElementById('testPos3').innerHTML = s4;
  var commaPos = s3.indexOf(',');
  if(commaPos < 0) commaPos = s3.length;
  if((code==188 || code ==110) && !preventDefault) commaPos = startPos;
  var j=0;
  for(var l=commaPos;l>0;l--) {
    if(s3.charAt(l)=='C') j-=2;
    if(j>2) {
      if(l<=startPos) {
        startPos++;
        endPos++;
      }
      s4 = s4.substring(0,l) + '.' + s4.substring(l);
      j=0;
    }
    if(s3.charAt(l-1)!='B') j++;
  }
  //document.getElementById('testDot').innerHTML = s4;
  o.value = s4.replace('A','').replace('C','');
  setCursorPosition(o, startPos, endPos);
  if(typeof(document.execCommand)!='undefined') try {document.execCommand('OverWrite', false, false);} catch(e){}
  return preventDefault;
} 

function setCursorPosition(o, pos, pos2) {
  if(o.createTextRange) {
    var r = document.selection.createRange().duplicate();
    r.moveStart('character', -o.value.length);
    r.moveStart('character', pos);
    r.moveEnd('character', 0);
    r.moveEnd('character', o.value.length);
    r.moveEnd('character', (typeof(pos2)!='undefined'? pos2 : pos)-o.value.length);
    r.select();
  } else {
    o.selectionStart = pos;
    o.selectionEnd = (typeof(pos2)!='undefined'? pos2 : pos );
  }
}

function getSelectionStart(o) {
  if (o.createTextRange) {
    var r = document.selection.createRange().duplicate()
    r.moveEnd('character', o.value.length)
    if (r.text == '') return o.value.length
    return o.value.lastIndexOf(r.text)
  } else return o.selectionStart
}

function getSelectionEnd(o) {
  if (o.createTextRange) {
    var r = document.selection.createRange().duplicate()
    r.moveStart('character', -o.value.length)
    return r.text.length
  } else return o.selectionEnd;
}