/*
 * Here is the random picture generator for the front page of the Geological
 * Sciences webpage.
 *
 * Modified 10/9/04 by RAB to provide descriptive alt tags for improved accessibility
 */

function generateRandom() {

//Generate a random image as well as an explanation

image = new Image();
text = new String();
num = 0;

text[num] = "Park Point of Duluth"
image[num] = "<img class='contentimg' src='images/randompics/27.jpg' alt='"+text[num++]+"'>"

text[num] = "Calcite sample"
image[num] = "<img class='contentimg' src='images/randompics/Calcite.jpg' alt='"+text[num++]+"'>"

text[num] = "Charlie Matsch leads a field trip"
image[num] = "<img class='contentimg' src='images/randompics/charliefield.jpg' alt='"+text[num++]+"'>"

text[num] = "Columnar jointing"
image[num] = "<img class='contentimg' src='images/randompics/columns.jpg' alt='"+text[num++]+"'>"

text[num] = "Copper sample"
image[num] = "<img class='contentimg' src='images/randompics/Copper.jpg' alt='"+text[num++]+"'>"

text[num] = "Coral sample"
image[num] = "<img class='contentimg' src='images/randompics/Coral.jpg' alt='"+text[num++]+"'>"

text[num] = "Crater"
image[num] = "<img class='contentimg' src='images/randompics/crater.jpg' alt='"+text[num++]+"'>"

text[num] = "Devils Tower, Wyoming"
image[num] = "<img class='contentimg' src='images/randompics/devils.jpg' alt='"+text[num++]+"'>"

text[num] = "Emerald sample"
image[num] = "<img class='contentimg' src='images/randompics/Emerald.jpg' alt='"+text[num++]+"'>"

text[num] = "Eye agate sample"
image[num] = "<img class='contentimg' src='images/randompics/EyeAgate.jpg' alt='"+text[num++]+"'>"

text[num] = "Eruption"
image[num] = "<img class='contentimg' src='images/randompics/fir3.jpg' alt='"+text[num++]+"'>"

text[num] = "Church buried in old flow"
image[num] = "<img class='contentimg' src='images/randompics/flowchurch.jpg' alt='"+text[num++]+"'>"

text[num] = "Fluorite sample"
image[num] = "<img class='contentimg' src='images/randompics/Fluorite.jpg' alt='"+text[num++]+"'>"

text[num] = "Gooseberry Falls"
image[num] = "<img class='contentimg' src='images/randompics/goose.jpg' alt='"+text[num++]+"'>"

text[num] = "Herr Dr. Professor Director Wolfgang Von Schlummerklutz"
image[num] = "<img class='contentimg' src='images/randompics/herrdoctor2.jpg' alt='"+text[num++]+"'>"

text[num] = "Duluth aerial lift-bridge"
image[num] = "<img class='contentimg' src='images/randompics/lift.jpg' alt='"+text[num++]+"'>"

text[num] = "Lake Superior from space (NASA photo)"
image[num] = "<img class='contentimg' src='images/randompics/lksuperior.jpg' alt='"+text[num++]+"'>"

text[num] = "M100 Galaxy"
image[num] = "<img class='contentimg' src='images/randompics/M100.jpg' alt='"+text[num++]+"'>"

text[num] = "Mastodon"
image[num] = "<img class='contentimg' src='images/randompics/mastodon.jpg' alt='"+text[num++]+"'>"

text[num] = "Park Point, Duluth"
image[num] = "<img class='contentimg' src='images/randompics/mnpoint.jpg' alt='"+text[num++]+"'>"

text[num] = "Earth's Moon"
image[num] = "<img class='contentimg' src='images/randompics/moon.jpg' alt='"+text[num++]+"'>"

text[num] = "Mount St. Helens (USGS photo)"
image[num] = "<img class='contentimg' src='images/randompics/mthelen.jpg' alt='"+text[num++]+"'>"

text[num] = "Pyrite sample"
image[num] = "<img class='contentimg' src='images/randompics/Pyrite.jpg' alt='"+text[num++]+"'>"

text[num] = "Quartz sample"
image[num] = "<img class='contentimg' src='images/randompics/Quartz.jpg' alt='"+text[num++]+"'>"

text[num] = "Rhodochrosite sample"
image[num] = "<img class='contentimg' src='images/randompics/Rhodochrosite.jpg' alt='"+text[num++]+"'>"

text[num] = "Rift flow"
image[num] = "<img class='contentimg' src='images/randompics/riftflow.jpg' alt='"+text[num++]+"'>"

text[num] = "Ripples at Mission Creek"
image[num] = "<img class='contentimg' src='images/randompics/ripplesmissioncreek3.jpg' alt='"+text[num++]+"'>"

text[num] = "Ancient ropy lava"
image[num] = "<img class='contentimg' src='images/randompics/ropylava75thave.jpg' alt='"+text[num++]+"'>"

text[num] = "Shovel Point, North Shore"
image[num] = "<img class='contentimg' src='images/randompics/shovel.jpg' alt='"+text[num++]+"'>"

text[num] = "Siderite sample"
image[num] = "<img class='contentimg' src='images/randompics/siderite.jpg' alt='"+text[num++]+"'>"

text[num] = "Aa lava flow"
image[num] = "<img class='contentimg' src='images/randompics/stop.jpg' alt='"+text[num++]+"'>"

text[num] = "Alteration in Icelandite"
image[num] = "<img class='contentimg' src='images/randompics/stop2e.jpg' alt='"+text[num++]+"'>"

text[num] = "Thomson Dam anticline"
image[num] = "<img class='contentimg' src='images/randompics/thomson.jpg' alt='"+text[num++]+"'>"

text[num] = "Tornado"
image[num] = "<img class='contentimg' src='images/randompics/tornado.jpg' alt='"+text[num++]+"'>"

//add additional pics here (Goodge's pics)

text[num] = "In the field, Transantarctic Mountains"
image[num] = "<img class='contentimg' src='images/randompics/antarctic_field.jpg' alt='"+text[num++]+"'>"

text[num] = "North Shore basalt flows"
image[num] = "<img class='contentimg' src='images/randompics/basalts.jpg' alt='"+text[num++]+"'>"

text[num] = "Post-tectonic biotite poikiloblasts"
image[num] = "<img class='contentimg' src='images/randompics/Bt_poikiloblasts.jpg' alt='"+text[num++]+"'>"

text[num] = "Folded carbonate, Cambrian Bluff, Antarctica"
image[num] = "<img class='contentimg' src='images/randompics/cambrian_bluff.jpg' alt='"+text[num++]+"'>"

text[num] = "Dilational shear veins, Sesia zone, Italy"
image[num] = "<img class='contentimg' src='images/randompics/dilational_veins_Sesia.jpg' alt='"+text[num++]+"'>"

text[num] = "Dry Valleys, Antarctica"
image[num] = "<img class='contentimg' src='images/randompics/dry_valleys.jpg' alt='"+text[num++]+"'>"

text[num] = "Flattened and folded conglomerate"
image[num] = "<img class='contentimg' src='images/randompics/flattened&folded_congl.jpg' alt='"+text[num++]+"'>"

text[num] = "Flattened carbonate clasts"
image[num] = "<img class='contentimg' src='images/randompics/flattened_carbonate_clasts.jpg' alt='"+text[num++]+"'>"

text[num] = "Folded gneisses"
image[num] = "<img class='contentimg' src='images/randompics/folded_gneisses.jpg' alt='"+text[num++]+"'>"

text[num] = "Folded gneisses, Antarctica"
image[num] = "<img class='contentimg' src='images/randompics/folded_gneisses_Ant.jpg' alt='"+text[num++]+"'>"

text[num] = "Dalradian folds, Scotland"
image[num] = "<img class='contentimg' src='images/randompics/folds_Dalradian.jpg' alt='"+text[num++]+"'>"

text[num] = "John Green leads a field trip"
image[num] = "<img class='contentimg' src='images/randompics/green_fieldtrip.jpg' alt='"+text[num++]+"'>"

text[num] = "Migmatite selvedge, Minnesota"
image[num] = "<img class='contentimg' src='images/randompics/migmatite.jpg' alt='"+text[num++]+"'>"

text[num] = "North Shore"
image[num] = "<img class='contentimg' src='images/randompics/north_shore.jpg' alt='"+text[num++]+"'>"

text[num] = "Boudins of pegmatite layer, Antarctica"
image[num] = "<img class='contentimg' src='images/randompics/peg_boudins_Ant.jpg' alt='"+text[num++]+"'>"

text[num] = "Pipe vesicles, North Shore"
image[num] = "<img class='contentimg' src='images/randompics/pipe_vescicles.jpg' alt='"+text[num++]+"'>"

text[num] = "Sillimanite-biotite schist"
image[num] = "<img class='contentimg' src='images/randompics/Sil-Bt_schist.jpg' alt='"+text[num++]+"'>"

text[num] = "Symplectite in garnet eclogite"
image[num] = "<img class='contentimg' src='images/randompics/symplectite.jpg' alt='"+text[num++]+"'>"

text[num] = "Tent camp, Antarctica"
image[num] = "<img class='contentimg' src='images/randompics/tent_camp.jpg' alt='"+text[num++]+"'>"

text[num] = "Radiation damage haloes in biotite"
image[num] = "<img class='contentimg' src='images/randompics/zircon_damage_haloes.jpg' alt='"+text[num++]+"'>"

text[num] = "MODIS image of Lake Superior (NASA image)"
image[num] = "<img class='contentimg' src='images/randompics/superior.nasa.jpg' alt='"+text[num++]+"'>"

//add additional pics here (Demko's pics)

text[num] = "Camel herd, Kuwait"
image[num] = "<img class='contentimg' src='images/randompics/camels_desert_Kuwait.jpg' alt='"+text[num++]+"'>"

text[num] = "Oligo-Miocene fluvial deposits, Aragon, Spain"
image[num] = "<img class='contentimg' src='images/randompics/channel_lith_Spain.jpg' alt='"+text[num++]+"'>"

text[num] = "Deepwater trace fossil Rhizocorallium, Eocene Jaca Basin, Spain"
image[num] = "<img class='contentimg' src='images/randompics/deepwater_Rhizocorallium_Spain.jpg' alt='"+text[num++]+"'>"

text[num] = "Deepwater trace fossil Olivellites, Eocene Ainsa Basin, Spain"
image[num] = "<img class='contentimg' src='images/randompics/deepwater_traces_Spain.jpg' alt='"+text[num++]+"'>"

text[num] = "Deformed trough and planar-tabular cross beds, Cretaceous Ferron Sandstone, Utah"
image[num] = "<img class='contentimg' src='images/randompics/deformed_xbeds_Ferron.jpg' alt='"+text[num++]+"'>"

text[num] = "Delta-front foresets, Eocene Roda Sandstone, Spain"
image[num] = "<img class='contentimg' src='images/randompics/delta_foresets_Spain.jpg' alt='"+text[num++]+"'>"

text[num] = "Deltaic parasequences, Cretaceous Ferron Sandstone, Utah"
image[num] = "<img class='contentimg' src='images/randompics/delta_lobes_Ferron_Utah.jpg' alt='"+text[num++]+"'>"

text[num] = "Wasp nest trace fossil, Jurassic Morrison Formation, Colorado"
image[num] = "<img class='contentimg' src='images/randompics/jurassic_beenest.jpg' alt='"+text[num++]+"'>"

text[num] = "Oligo-Miocene fluvial sandstones, Piraces, Aragon, Spain"
image[num] = "<img class='contentimg' src='images/randompics/Miocene_fluvial_sands_Spain.jpg' alt='"+text[num++]+"'>"

text[num] = "Oligo-Miocene fluvial conglomerates, El Pillar, Aragon, Spain"
image[num] = "<img class='contentimg' src='images/randompics/Miocene_conglomerates_Spain.jpg' alt='"+text[num++]+"'>"

text[num] = "Oligo-Miocene fluvial deposits, Piraces, Aragon, Spain"
image[num] = "<img class='contentimg' src='images/randompics/Miocene_fluvial_Spain.jpg' alt='"+text[num++]+"'>"

text[num] = "Miocene tidal deposits - Kuwait"
image[num] = "<img class='contentimg' src='images/randompics/Miocene_tidal_deposits_Kuwait.jpg' alt='"+text[num++]+"'>"

text[num] = "Wind ripples, Kuwait"
image[num] = "<img class='contentimg' src='images/randompics/modern_windripples_Kuwait.jpg' alt='"+text[num++]+"'>"

text[num] = "Pleistocene aeolian-reworked oolites, Kuwait"
image[num] = "<img class='contentimg' src='images/randompics/Pleist_aeolian_oolite_Kuwait.jpg' alt='"+text[num++]+"'>"

text[num] = "Foreland thrust sheets, Boixols, Pyrenees, Spain"
image[num] = "<img class='contentimg' src='images/randompics/Pyrenees_thrusts_Spain.jpg' alt='"+text[num++]+"'>"

text[num] = "Sea-ice bergybits - Greenland"
image[num] = "<img class='contentimg' src='images/randompics/sea_ice_bergybits_Greenland.jpg' alt='"+text[num++]+"'>"

text[num] = "Fluvial deltaic deposits, Tertiary Los Monegros Lacustrine Complex, Mequinensa, Spain"
image[num] = "<img class='contentimg' src='images/randompics/Tertiary_lacustrine_deltas.jpg' alt='"+text[num++]+"'>"

text[num] = "Littoral carbonate and mudflat deposits, Tertiary Los Monegros Lacustrine Complex, Cuesta de Fraga Hills, Spain"
image[num] = "<img class='contentimg' src='images/randompics/Tertiary_lacustrine_fluvial.jpg' alt='"+text[num++]+"'>"

text[num] = "Littoral carbonate deposits, Tertiary Los Monegros Lacustrine Complex, Cuesta de Fraga Hills, Spain"
image[num] = "<img class='contentimg' src='images/randompics/Tertiary_lacustrine_limesto.jpg' alt='"+text[num++]+"'>"

text[num] = "Crayfish burrows, Triassic Chinle Formation, Utah"
image[num] = "<img class='contentimg' src='images/randompics/Triassic_crayfishburrows_Sp.jpg' alt='"+text[num++]+"'>"

text[num] = "Paleosol, Triassic Chinle Formation, Utah"
image[num] = "<img class='contentimg' src='images/randompics/triassic_paleosol_Utah.jpg' alt='"+text[num++]+"'>"

text[num] = "Trough crossbeds, Cretaceous Ferron Sandstone, Utah"
image[num] = "<img class='contentimg' src='images/randompics/trough_xbeds_Ferron.jpg' alt='"+text[num++]+"'>"

text[num] = "Vertical climbing-ripple cross-lamination, Cretaceous Ferron Sandstone, Utah"
image[num] = "<img class='contentimg' src='images/randompics/vertical_climbing_ripples.jpg' alt='"+text[num++]+"'>"

//add additional pics here




inc = Math.floor(Math.random() * num);
document.write(image[inc]);
document.write('<br /><span class="imgbox">' + text[inc] + '</span>');

}