<Script Language="Javascript"> <!--
var ie4,nn4; if (document.all)ie4=true; if (document.layers)nn4=true;
function earthquake(start) { if (nn4 || ie4) { for (i = 13; i > 0; i--) { for (j = start; j > 0; j--) { self.moveBy(0,i); self.moveBy(i,0); self.moveBy(0,-i); self.moveBy(-i,0);} }}}
//--></script>