<!--
var myimages=new Array()

myimages[0]='<img src=img/logo_left.gif border="0">'
myimages[1]='<img src=img/logo_left1.gif border="0">'
myimages[2]='<img src=img/logo_left2.gif border="0">'
myimages[3]='<img src=img/logo_left3.gif border="0">'

var ry=Math.floor(Math.random()*myimages.length)
document.write(myimages[ry]);
//-->