// JavaScript for touchpoints on index page
// Preloading of images
// Functions for swapping images on onmouseover and onmouseout events

// Variable declarations
var img1;
var img2;
var img3;
var img4;
var img5;
var img6;
var img7;
var img8;

// Preload images
img1 = new Image;
img1.src = '/images/general/introductory-courses.gif';

img2 = new Image;
img2.src = '/images/general/introductory-courses-hover.gif';

img3 = new Image;
img3.src = '/images/general/certificate-courses.gif';

img4 = new Image;
img4.src = '/images/general/certificate-courses-hover.gif';

img5 = new Image;
img5.src = '/images/general/diploma-courses.gif';

img6 = new Image;
img6.src = '/images/general/diploma-courses-hover.gif';

img7 = new Image;
img7.src = '/images/general/supervision-courses.gif';

img8 = new Image;
img8.src = '/images/general/supervision-courses-hover.gif';


// Javascript functions for swapping images
function swap_for_img1()
{
	document.getElementById("introductory-courses").src = img1.src;
}

function swap_for_img2()
{
	document.getElementById("introductory-courses").src = img2.src;
}

function swap_for_img3()
{
	document.getElementById("certificate-courses").src = img3.src;
}

function swap_for_img4()
{
	document.getElementById("certificate-courses").src = img4.src;
}

function swap_for_img5()
{
	document.getElementById("diploma-courses").src = img5.src;
}

function swap_for_img6()
{
	document.getElementById("diploma-courses").src = img6.src;
}

function swap_for_img7()
{
	document.getElementById("supervision-courses").src = img7.src;
}

function swap_for_img8()
{
	document.getElementById("supervision-courses").src = img8.src;
}