var roll_delay = "8000";
var roll_img_id = "roll";
var roll_link_id = "roll_link";

//starting image
var roll_curr_img = 0;

var roll_images = new Array();
var roll_links = new Array();

roll_images[0] = "images/geos.jpg";
roll_links[0] = "index.php?cid=104";

roll_images[1] = "images/tracking.jpg";
roll_links[1] = "index.php?cid=111";

//roll_images[2] = "";
//roll_links[2] = "";



function roll_image(img_id, link_id, curr_img) {

	document.getElementById(img_id).src = roll_images[curr_img];
	document.getElementById(link_id).href = roll_links[curr_img];


	if(curr_img>=(roll_images.length-1)) curr_img = 0;
	else curr_img++;

	setTimeout("roll_image('"+roll_img_id+"','"+roll_link_id+"','"+curr_img+"')", roll_delay);
}


roll_image(roll_img_id, roll_link_id, roll_curr_img);