function showinfo() {
	obj1 = document.getElementById("infobox");
	obj2 = document.getElementById("showinfobox");
	obj1.style.display = "";
	obj2.style.display = "none";
}
function showmusic() {
	obj1 = document.getElementById("music");
	obj2 = document.getElementById("showmusic");
	obj1.style.display = "";
	obj2.style.display = "none";
}
function hidemusic() {
	obj1 = document.getElementById("music");
	obj2 = document.getElementById("showmusic");
	obj1.style.display = "none";
	obj2.style.display = "";
}
function shownames() {
	obj1 = document.getElementById("names");
	obj2 = document.getElementById("shownames");
	obj1.style.display = "";
	obj2.style.display = "none";
}
function hidenames() {
	obj1 = document.getElementById("names");
	obj2 = document.getElementById("shownames");
	obj1.style.display = "none";
	obj2.style.display = "";
}
function showdownload() {
	obj1 = document.getElementById("message");
	obj2 = document.getElementById("download");
	obj3 = document.getElementById("upload");
	obj4 = document.getElementById("mail");
	obj5 = document.getElementById("database");
	obj1.style.display = "none";
	obj2.style.display = "";
	obj3.style.display = "none";
	obj4.style.display = "none";
	obj5.style.display = "none";
}
function showupload() {
	obj1 = document.getElementById("message");
	obj2 = document.getElementById("download");
	obj3 = document.getElementById("upload");
	obj4 = document.getElementById("mail");
	obj5 = document.getElementById("database");
	obj1.style.display = "none";
	obj2.style.display = "none";
	obj3.style.display = "";
	obj4.style.display = "none";
	obj5.style.display = "none";
}
function showmail() {
	obj1 = document.getElementById("message");
	obj2 = document.getElementById("download");
	obj3 = document.getElementById("upload");
	obj4 = document.getElementById("mail");
	obj5 = document.getElementById("database");
	obj1.style.display = "none";
	obj2.style.display = "none";
	obj3.style.display = "none";
	obj4.style.display = "";
	obj5.style.display = "none";
}
function showdatabase() {
	obj1 = document.getElementById("message");
	obj2 = document.getElementById("download");
	obj3 = document.getElementById("upload");
	obj4 = document.getElementById("mail");
	obj5 = document.getElementById("database");
	obj1.style.display = "none";
	obj2.style.display = "none";
	obj3.style.display = "none";
	obj4.style.display = "none";
	obj5.style.display = "";
}