function CheckStr(strOriginal, strFind, strChange)
{
    var position, strOri_Length;
    position = strOriginal.indexOf(strFind);  
    
    while (position != -1)
	{
      strOriginal = strOriginal.replace(strFind, strChange);
      position    = strOriginal.indexOf(strFind);
    }
  
    strOri_Length = strOriginal.length;
    return strOri_Length;
}

function strLenCnt(str,lengths)	
{
  var len = 0;
  var newStr = '';
  
  for (var i=0;i<str.length; i++) {
    var n = str.charCodeAt(i);
    var nv = str.charAt(i);
    if ((n>= 0)&&(n<256)) {
      len ++;
    } else {
      len += 2;
	}

	if (len>lengths)
		break;
	else
		newStr = newStr + nv;
  }

  return newStr;
}