function randInt(min,max)
{
     var div = (max - min) + 1
     var randNum = Math.random()
     for (var i = 0; i <= div - 1; i++)
     {
          if (randNum >= i / div && randNum < (i+1) / div)
          {return i + min}
     }
}


var abc = randInt(1,3);

if (abc == 1) {

     document.write("<a href=\"/home.php?cat=293\"> <IMG SRC=\"/skin1/images/side18a.gif\" BORDER=\"0\">");

}

if (abc == 2) {

     document.write("<a href=\"/home.php?cat=293\"> <IMG SRC=\"/skin1/images/side19.jpg\" BORDER=\"0\">");

}

if (abc == 3) {

     document.write("<a href=\"/home.php?cat=294\"> <IMG SRC=\"/skin1/images/side17a.gif\" BORDER=\"0\">");

}