var nAnchor = 0;
var nTimerID = 0;
var pic1 = 0;
var pic2 = 0;
var pic3 = 0;
var pic4 = 0;

function PreloadImages()
{
	pic1 = new Image(250,180); 
	pic1.src = "./images/logconverter-thumb.jpg"; 
	pic2 = new Image(250,180); 
	pic2.src = "./images/logcalculator-thumb.jpg"; 
	pic3 = new Image(250,180); 
	pic3.src = "./images/cabrillodoctor-thumb.jpg"; 
	pic4 = new Image(250,180); 
	pic4.src = "./images/logchecker-thumb.jpg"; 

	nTimerID = window.setTimeout('ChangeImages()', 5000);
}

function ChangeImages()
{
	if(nTimerID)
		window.clearTimeout(nTimerID);
	var imageLC = document.getElementById('imgLogChecker');
	var linkLC = document.getElementById('linkLogChecker');
	
	switch(nAnchor)
	{
		case 0:
			imageLC.setAttribute('src', pic1.src);
			linkLC.setAttribute('href', './images/logconverter-big.gif');
			break;
		case 1:
			imageLC.setAttribute('src', pic2.src);
			linkLC.setAttribute('href', './images/logcalculator-big.gif');
			break;
		case 2:
			imageLC.setAttribute('src', pic3.src);
			linkLC.setAttribute('href', './images/cabrillodoctor-big.gif');
			break;
		case 3:
			imageLC.setAttribute('src', pic4.src);
			linkLC.setAttribute('href', './images/logchecker-big.gif');
			break;
	}
	
	nAnchor++;
	if(nAnchor > 3)
		nAnchor = 0;
	nTimerID = window.setTimeout('ChangeImages()', 5000);
}