/*
	Common function for CTRL-Left and CTRL-Right pages listing
*/
	function addEvent(obj, type, func) {
		if (obj.addEventListener) {
			obj.addEventListener(type, func, 0);
		}
		else if (obj.attachEvent) {
			obj.attachEvent("on" + type, func);
		}
	}

	function commonKeydown(e) {
		if (!e) {
			e = window.event;
		}
		var key = e.keyCode;
		if (e.ctrlKey) {
			if (key == 37) { // left arrow
				var p = document.getElementById('prevp');
				if (p) {
					location.href = p.href;
				}
			} else if (key == 39) { // left arrow
				var p = document.getElementById('nextp');
				if (p) {
					location.href = p.href;
				}
			} else if (key == 38) { // up arrow
				var p = document.getElementById('homep');
				if (p) {
					location.href = p.href;
				}
			} else if (key == 40) { // down arrow
				var n = document.getElementById('downp');
				if (n) {
					location.href = n.href;
				}
			}
		}
	}

	addEvent(document, "keydown", commonKeydown);