var logga = 0;

setTimeout("swapLogga()", 1000);

function swapLogga()
{
        document.getElementById("logga").setAttribute("src","style_images/1/dxslogga"+logga.toString()+".png");
	logga++;
	if (logga>4) {
		logga = 0;
	}
	setTimeout("swapLogga()", 3000);
}