function show(Num){
	if (document.all){
		//IE;
		if (document.all[("div_" + Num)].className == "show_div") {
			document.all[("div_" + Num)].className = "hide_div";
		} else {
			document.all[("div_" + Num)].className = "show_div";
		}
		return true;
	}
	if (document.getElementById){
		//Mozilla;
		if (document.getElementById(("div_" + Num)).className == "show_div") {
			document.getElementById(("div_" + Num)).className = "hide_div";
		} else {
			document.getElementById(("div_" + Num)).className = "show_div";
		}
		return true;
	}
	return true;
}

function hide(Num){
	if (document.all){
		//IE;
		document.all[("div_" + Num)].className = "hide_div";
		return true;
	}
	if (document.getElementById){
		//Mozilla;
		document.getElementById(("div_" + Num)).className = "hide_div";
		return true;
	}
	return true;
}