function gup( name )
{
	name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
	var regexS = "[\\?&]"+name+"=([^&#]*)";
	var regex = new RegExp( regexS );
  	var results = regex.exec( window.location.href );
	if( results == null )
		return "";
	else
		return results[1];
}

function changeMenuImage(menu) {
	if (menu == "mainpage") {
		document.getElementById('menu_home').src = '/images/btn_home_akt.png';
	}
	if (menu == "contact") {
		document.getElementById('menu_kont').src = '/images/btn_kont_akt.png';
	}
	if (menu == "menucard") {
		document.getElementById('menu_karte').src = '/images/btn_karte_akt.png';
	}
	if (menu == "infos") {
		document.getElementById('menu_info').src = '/images/btn_info_akt.png';
	}
	if (menu == "") {
		document.getElementById('menu_home').src = '/images/btn_home_akt.png';
	}
}

Date.prototype.getWeek = function() {
	var onejan = new Date(this.getFullYear(),0,1);
	return Math.ceil((((this - onejan) / 86400000) + onejan.getDay()+1)/7);
}


function changeMenucardMenuBG(menu,subParam) {
	var a = new Date();
	akt_week = a.getWeek();
	
}