function show_alt (content) {
	hide_alt();
	var el = document.getElementById("weathsh");
	var o = window.event.srcElement;
	if (content!='' && el.style.visibility != "visible") {el.innerHTML = '<small>'+content+'</small>';}
	var x = window.event.clientX + document.documentElement.scrollLeft + document.body.scrollLeft + 5;
	var y = window.event.clientY + document.documentElement.scrollTop + document.body.scrollTop+7;
	el.style.left = x + "px";
	el.style.top  = y + "px";
	if (el.style.visibility != "visible") {
		el.style.visibility = "visible";
	}
}

function hide_alt () {
	document.getElementById("weathsh").style.visibility = 'hidden';
}