var images = new Array();
var url = '/ajax.php?f=getSponsorImages';
$.post(url, { }, getSponsorImages_callback, "json");

function getSponsorImages_callback(response)
{
    for(var i = 0; i < response.data.length; i++) {
        preimage = new Image();
        preimage.src = '/images/uploads/90x70_' + response.data[i].src;
        images.push(new Array(preimage, response.data[i].alt, response.data[i].width, response.data[i].height));
    }
    setInterval ( "rotateImages()", 3000 );
}

function rotateImages() {

	if (images.length < 2) return false;
	var randomnumber1 = Math.floor(Math.random()*images.length);

	var logo = document.getElementById("sponsor1Logo");

	if (logo) {
		logo.setAttribute("src", images[randomnumber1][0].src);
		logo.setAttribute("alt", images[randomnumber1][1]);
	}

	randomnumber2 = Math.floor(Math.random()*images.length)

	while (randomnumber1 == randomnumber2)
	{
    	randomnumber2 = Math.floor(Math.random()*images.length)
	}
	logo = document.getElementById("sponsor2Logo");
	if (logo) {
		logo.setAttribute("src", images[randomnumber2][0].src);
		logo.setAttribute("alt", images[randomnumber2][1]);
	}
}