function get_random()
{
	var ranNum = Math.floor(Math.random()*4);
	return ranNum;
}

function show_image(){

	var img = new Array(4);
	
	img[0] = new Array(2);
	img[0][0]="images/home-people-guru.jpg";
	img[0][1]="people";

	img[1] = new Array(2);	
	img[1][0]="images/home-people-oracle.jpg";
	img[1][1]="people";

	img[2] = new Array(2);		
	img[2][0]="images/home-people-waterfront.jpg";
	img[2][1]="people";
		
	img[3] = new Array(2);		
	img[3][0]="images/home-people-yumyum.jpg";
	img[3][1]="people";	

	var whichImg=get_random();
	
	document.write("<a href=\"");
	document.write(img[whichImg][1]);
	document.write("\">");
	document.write("<img src='");
	document.write(img[whichImg][0]);
	document.write("' border='0' alt='People of Brewery Wharf'/></a>");
}