var theImages = new Array()


theImages[0] = '/site/topo/1.jpg'
theImages[1] = '/site/topo/2.jpg'
theImages[2] = '/site/topo/3.jpg'
theImages[3] = '/site/topo/4.jpg'
theImages[4] = '/site/topo/5.jpg'
theImages[5] = '/site/topo/6.jpg'
theImages[6] = '/site/topo/7.jpg'
theImages[7] = '/site/topo/8.jpg'
theImages[8] = '/site/topo/9.jpg'
theImages[9] = '/site/topo/10.jpg'
theImages[10] = '/site/topo/11.jpg'




var j = 0
var p = theImages.length;
var preBuffer = new Array()
for (i = 0; i < p; i++){
   preBuffer[i] = new Image()
   preBuffer[i].src = theImages[i]
}
var whichImage = Math.round(Math.random()*(p-1));
function showImaget(){
document.write('<img src="'+theImages[whichImage]+'"   width="494" height="221" >');
}