var TotalImages = 3;

function create() {
        this.width = '';
        this.height = '';
        this.src = '';
}

ads = new Array();
for(var i=1; i<=TotalImages; i++) { 
	ads[i] = new create(); 
	ads[i].width = "116";
	ads[i].height = "183";
	ads[i].src = "images/display"+i+".jpg";
}

 
var n1 = Math.random() + '';
//alert('n1=' + n1);
//n1 = parseInt("" + n1.charAt(TotalImages) + n1.charAt(TotalImages-1));
n1 = parseInt("" + n1.charAt(14) + n1.charAt(15));
while(n1 > TotalImages || n1 < 1){
	if(n1 >TotalImages) {
	        n1 = n1 - TotalImages;
	}
	else if(n1==0) {
        	n1 = n1 + TotalImages;
	}
}
n1 += "";
 
var image1 = ads[n1];
if(image1==null){
	alert('n1=' + n1);
}
var ad1 = "";
ad1 += '<img src="' + image1.src + '" width="' + image1.width;
ad1 += '"\n height="' + image1.height + ' vspace="0" hspace="0">';