var intPic = new Array();
var intAlt = new Array();

intPic[0]='http://aquacon.nd.edu/images/outreach/african_huts.jpg'
intPic[1]='http://aquacon.nd.edu/images/outreach/aloe.jpg'
intPic[2]='http://aquacon.nd.edu/images/outreach/artificial_streams_close.jpg'
intPic[3]='http://aquacon.nd.edu/images/outreach/beach_sand1.jpg'
intPic[4]='http://aquacon.nd.edu/images/outreach/beach_sand2.jpg'
intPic[5]='http://aquacon.nd.edu/images/outreach/bog3_less_water.jpg'
intPic[6]='http://aquacon.nd.edu/images/outreach/brian_students.jpg'
intPic[7]='http://aquacon.nd.edu/images/outreach/brush_pond.jpg'
intPic[8]='http://aquacon.nd.edu/images/outreach/calipers.jpg'
intPic[9]='http://aquacon.nd.edu/images/outreach/drops_leaves.jpg'
intPic[10]='http://aquacon.nd.edu/images/outreach/flowers.jpg'
intPic[11]='http://aquacon.nd.edu/images/outreach/heron_boat.jpg'
intPic[12]='http://aquacon.nd.edu/images/outreach/lake_trees.jpg'
intPic[13]='http://aquacon.nd.edu/images/outreach/mountain_lake.jpg'
intPic[14]='http://aquacon.nd.edu/images/outreach/pictured_rocks.jpg'
intPic[15]='http://aquacon.nd.edu/images/outreach/purple_loosestrife2.jpg'
intPic[16]='http://aquacon.nd.edu/images/outreach/river_superior.jpg'
intPic[17]='http://aquacon.nd.edu/images/outreach/sunset1.jpg'
intPic[18]='http://aquacon.nd.edu/images/outreach/underc_pond.jpg'
intPic[19]='http://aquacon.nd.edu/images/outreach/yellow_flower.jpg'
intPic[20]='http://aquacon.nd.edu/images/outreach/yellow_flower2.jpg'

intAlt[0]='Several Huts in Africa'
intAlt[1]='Aloe Plant'
intAlt[2]='Closeup of the Artificial Streams'
intAlt[3]='The Beach at Sunset'
intAlt[4]='The Tide Coming in on the Beach'
intAlt[5]='Plants Overlooking a Bog'
intAlt[6]='Brian with a Group of Students'
intAlt[7]='Brush Overlooking a Pond'
intAlt[8]='Closeup of a Crayfish'
intAlt[9]='Water Droplets on a Leaf'
intAlt[10]='Flowers in Africa'
intAlt[11]='A Heron and a Boat on the Lake'
intAlt[12]='A Lake Surrounded by Trees'
intAlt[13]='A Mountain Overlooking the Lake'
intAlt[14]='Rocks on the Mountainside'
intAlt[15]='Purple Plants Overlooking the Lake'
intAlt[16]='The River Superior'
intAlt[17]='Sunset Over the Lake'
intAlt[18]='A Small Pond'
intAlt[19]='Yellow Flowers in Africa'
intAlt[20]='A Beautiful Yellow Flower'

var j = intPic.length;
var myPic = Math.round(Math.random()*(j-1));
function showPic(){
	document.write('<img src="'+intPic[myPic]+'" alt="'+intAlt[myPic]+'">');
}