/* 
 * Change county image onmouseover on index page 
 */
function change_image (region) {
	var ShowItem = document.getElementById("county_image");
	var LinkItem = document.getElementById("county_" + region);
	ShowItem.className = "sprite-region-" + region;
	
	document.onmousemove = function(e) {
		var pos = getPosition(e)
		LinkItem.style.top = (pos.y + 5) + 'px';
		LinkItem.style.left = (pos.x + 5) + 'px';
	}
	
	LinkItem.style.display = 'block';
	return true;
}

/* 
 * Change back county image onmouseout on index page
 */ 
function hide_image (region) {
	var ShowItem = document.getElementById("county_image");
	var LinkItem = document.getElementById("county_" + region);
	ShowItem.className = "sprite-region-none";
	LinkItem.style.display = "none";
	return true;
}

/*
* Returns cursor position
*/
function getPosition(e) {
    e = e || window.event;
    var cursor = {x:0, y:0};
    if (e.pageX || e.pageY) {
        cursor.x = e.pageX;
        cursor.y = e.pageY;
    } 
    else {
        var de = document.documentElement;
        var b = document.body;
        cursor.x = e.clientX + 
            (de.scrollLeft || b.scrollLeft) - (de.clientLeft || 0);
        cursor.y = e.clientY + 
            (de.scrollTop || b.scrollTop) - (de.clientTop || 0);
    }
    return cursor;
}