var star_selected = 0;
 function star_check(star)
  {
	var star_html = '';
	var i = 1;
	for(i;i<=star;i++)
	 {
		if(i==star)
	 star_html = star_html + '<img src="img/star_a.gif" onClick="star_click(' + i + ');" border="0" />';
		else
	 star_html = star_html + '<img src="img/star_a.gif" onMouseOver="star_check(' + i + ');" border="0" />';
	 }

	for(i;i<=5;i++)
	 star_html = star_html + '<img src="img/star_b.gif" onMouseOver="star_check(' + i + ');" border="0" />';

	document.getElementById('div_star').innerHTML = star_html;
  }

 function star_click(star)
  {
	star_selected = star;
	document.getElementById('star').value = star;
  }