// JavaScript Document

function show_submenu(id) {
	document.getElementById(id).style.display = "block";
}

function hide_submenu(id) {
	document.getElementById(id).style.display = "none";
}

function open_location(cat, subcat) {
	if (subcat) {
		var location = "./?cat="+cat+"&subcat="+subcat;
	}
	else {
		var location = "./?cat="+cat;
	};
	document.location = location;
}

function open_gallery() {
	document.location = "./gallery.php";
}

function change_gallery(name) {
	document.getElementById("gallery_current").style.backgroundImage = "url(gallery_img/"+name+")";
	var desc = document.getElementById(name).alt;
	document.getElementById("gallery_desc").innerHTML = " "+desc;
}

function setHeights() {
	var height;
	var contentHeight = document.getElementById("content").offsetHeight + 30;
	var documentHeight = document.body.clientHeight;
	if (documentHeight < contentHeight) {
		height = contentHeight;
	}
	else {
		height = documentHeight;
	}
	document.getElementById("side_left").style.height = height + "px";
	document.getElementById("side_right").style.height = height + "px";
}

function global_main() {
	setHeights();
}

function heightchange() {
	setHeights();
}

window.onresize = heightchange;