function go_over(id){
	document.getElementById('space'+id).style.backgroundImage	= "url('images/menu_space_active.gif')";
	document.getElementById('space'+(id-1)).style.backgroundImage	= "url('images/menu_space_active.gif')";
	document.getElementById('menu'+id+'l').style.backgroundImage	= "url('images/menu_left.gif')";
	document.getElementById('menu'+id+'r').style.backgroundImage	= "url('images/menu_right.gif')";
	document.getElementById('menu'+id).style.backgroundColor	= "#FFFFFF";
	document.getElementById('menu'+id+'a').style.color		= "#B13914";
}

function go_out(id){
	if (id == (thisPage-1)) {
		var right = "no";
		var left  = "yes";
	}else if (id == (thisPage+1)) {
		var right = "yes";
		var left  = "no";
	}else if (id == thisPage) {
		var right = "no";
		var left  = "no";
		var bg    = "no";
	}else{
		var right = "yes";
		var left  = "yes";
	}
	if (id == 1) {
		if (right == "yes") {
			document.getElementById('space'+id).style.backgroundImage	= "url('images/menu_space.gif')";
		}
		if (left == "yes") {
			document.getElementById('space'+(id-1)).style.backgroundImage	= "url('images/menu_space_empty.gif')";
		}
	}else if (id == menuElements) {
		if (left == "yes") {
			document.getElementById('space'+(id-1)).style.backgroundImage	= "url('images/menu_space.gif')";
		}
		if (right == "yes") {
			document.getElementById('space'+id).style.backgroundImage	= "url('images/menu_space_empty.gif')";
		}
	}else{
		if (right == "yes") {
			document.getElementById('space'+id).style.backgroundImage	= "url('images/menu_space.gif')";
		}
		if (left == "yes") {
			document.getElementById('space'+(id-1)).style.backgroundImage	= "url('images/menu_space.gif')";
		}
	}
	if (bg != "no") {
		document.getElementById('menu'+id+'l').style.backgroundImage	= "url('images/menu_empty.gif')";
		document.getElementById('menu'+id+'r').style.backgroundImage	= "url('images/menu_empty.gif')";
		document.getElementById('menu'+id).style.backgroundColor	= "#B13914";
		document.getElementById('menu'+id+'a').style.color		= "#FFFFFF";
	}
}

function go_validate(theForm) {

	if (theForm.DFromName.value == "") {
		alert("Husk at udfylde feltet \"Dit Navn\"");
		theForm.DFromName.focus();
		return (false);
	}

	// Validér mail-adressen
	error = 0;
	place_at = 0;
	place_dot = 0;
	from = theForm.DFromMail.value;
	place_at = from.indexOf("@");
	place_dot = from.indexOf(".");
	if (from == "" || from == "Din e-mail"){
		error = 1;
	}else{
		tegn = from.indexOf(" ");
		if (tegn != -1){
			error = 1;
		}else{
			if (from.indexOf(";") != -1 || from.indexOf(",") != -1){
				error = 1;
			}else{
				if (place_at < 1 || from.length <= (place_at + 1)){
					error = 1;
				}else if (place_dot < 1 || from.length <= (place_dot + 1)) {
					error = 1;
				}
			}
		}
	}


	if (error == 1) {
		alert("Din e-mail er ikke gyldig - prřv igen");
		theForm.DFromMail.focus();
		return (false);
	}

	if (theForm.besked.value == "") {
		alert("Husk at skrive en besked");
		theForm.besked.focus();
		return (false);
	}
	return (true);

}