function mostrar_menu(idDIV){
	if (document.getElementById(idDIV).className == "submenu hide")
	{
		document.getElementById("m1").className = "submenu hide";
		document.getElementById("m2").className = "submenu hide";
		document.getElementById("m3").className = "submenu hide";
		document.getElementById("m4").className = "submenu hide";
		document.getElementById("m5").className = "submenu hide";

		document.getElementById(idDIV).className = "submenu s_top";
	}
	else
		document.getElementById(idDIV).className = "submenu hide";

}