var frontpic_var = ["EASC 406 - Peru 2009","Peru09_EASC406.jpg","Big Folds","folds.jpg","Wet Feet", "PlayInWater.jpg", "Volcanoes in the Mist, Indonesia","merapi.jpg","Beach ripples", "ripples.jpg"]; 

var randomIndex = 0;
var startImageTag = '<img src="images/front_images/';
var endImageTag = '" width="590" height="243"/>';

function randomize()
{         
	randomIndex = Math.floor(Math.random() * frontpic_var.length/2);
}

function randomText()
{    
	document.write(frontpic_var[2*randomIndex]);
}

function randomImage()
{
	document.write(startImageTag + frontpic_var[2*randomIndex+1] + endImageTag);
}