function mouse_click(which) {
	switch(which){
	  case 1:document.images["car"].src="images-insight-ze2/01b.jpg";return false;
	  case 2:document.images["car"].src="images-insight-ze2/02b.jpg";return false;
	  case 3:document.images["car"].src="images-insight-ze2/03b.jpg";return false;
	  case 4:document.images["car"].src="images-insight-ze2/04b.jpg";return false;
	  case 5:document.images["car"].src="images-insight-ze2/05b.jpg";return false;
	  case 6:document.images["car"].src="images-insight-ze2/06b.jpg";return false;
	  case 7:document.images["car"].src="images-insight-ze2/07b.jpg";return false;
	  case 8:document.images["car"].src="images-insight-ze2/08b.jpg";return false;
	  case 9:document.images["car"].src="images-insight-ze2/09b.jpg";return false;
	  case 10:document.images["car"].src="images-insight-ze2/10b.jpg";return false;
	  case 11:document.images["car"].src="images-insight-ze2/11b.jpg";return false;
	  case 12:document.images["car"].src="images-insight-ze2/12b.jpg";return false;
	  case 13:document.images["car"].src="images-insight-ze2/13b.jpg";return false;
	  case 14:document.images["car"].src="images-insight-ze2/14b.jpg";return false;
	  case 15:document.images["car"].src="images-insight-ze2/15b.jpg";return false;
	  case 16:document.images["car"].src="images-insight-ze2/16b.jpg";return false;
	  default:break;
	}
}