function starsUp(num)
{
      for(i=1;i<=10;i++)
      {
          var starName = "star_" + i;
          if(i<=num)
          {
              document.getElementById(starName).src="./pix/icons/star_active.png";
          }
          else
          {
              document.getElementById(starName).src="./pix/icons/star_pasive.png";
          }
         
      }
}
function starsOut(num)
{
      for(i=1;i<=10;i++)
      {
          var starName = "star_" + i;
          if(i<=num)
          {
              document.getElementById(starName).src="./pix/icons/star_active.png";
          }
          else
          {
              document.getElementById(starName).src="./pix/icons/star_pasive.png";
          }
         
      }
}
function insert(text) {

  var textfield = document.getElementById('textfield');

  if (textfield.createTextRange && textfield.caretPos)

  {

    var caretPos = textfield.caretPos;

    caretPos.text =  caretPos.textarea.charAt(caretPos.text.length - 1) == ' ' ? text + ' ' : text;

  }

  else

     textfield.value += text;

     textfield.focus(caretPos)

}