//vars
	var numads = 0;
	
	//build arrays		
	banner = new Array(100);
	displayed = new Array(100);

	//num ads
	
	banner[1]='<IMG SRC="../Asset/iu_images/masthead/Arts_Festival2.jpg" ALT="Arts Festival" BORDER="1">';
	displayed[1] = false;
	numads = numads + 1;
	
	banner[2]='<IMG SRC="../Asset/iu_images/masthead/Pink_Ribbon.jpg" ALT="Pink Ribbon" BORDER="1">';
	displayed[2] = false;
	numads = numads + 1;
	
	banner[3]='<IMG SRC="../Asset/iu_images/masthead/Lower_Scioto.jpg" WIDTH="75" HEIGHT="75" ALT="Lower Scioto-Skyline" BORDER="1">';
	displayed[3] = false;
	numads = numads + 1;
	
	banner[4]='<IMG SRC="../Asset/iu_images/masthead/Convention_Center.jpg" ALT="Convention Center" BORDER="1">';
	displayed[4] = false;
	numads = numads + 1;
	
	banner[5]='<IMG SRC="../Asset/iu_images/masthead/drama.jpg" ALT="drama" BORDER="1">';
	displayed[5] = false;
	numads = numads + 1;
	
	banner[6]='<IMG SRC="../Asset/iu_images/masthead/mayor1.jpg" ALT="" BORDER="1">';
	displayed[6] = false;
	numads = numads + 1;
	
	banner[7]='<IMG SRC="../Asset/iu_images/masthead/park.jpg" ALT="" BORDER="1">';
	displayed[7] = false;
	numads = numads + 1;
	
	banner[8]='<IMG SRC="../Asset/iu_images/masthead/state_uni.jpg" ALT="" BORDER="1">';
	displayed[8] = false;
	numads = numads + 1;
	
	
	//vars
	var how_many_ads = numads;
	var num_images_to_display = 4; //must be greater then 0
	var num_images_displayed = 0;
				
	//loop & output image
	while(true)
	{
			
		//get vals
		var ad = (Math.round((Math.random()*(numads-1))+1));;
		
		//display if it hasn't been displayed already
		if (displayed[ad] == false)
		{
			if (num_images_displayed > 0) document.write('<img src=\"/Asset/iu_images/spacer.gif\" height=1 width=6>');
			document.write(banner[ad]);
			displayed[ad] = true;
			num_images_displayed++;
		}
	
		if (num_images_displayed == num_images_to_display) break;
	}