function toggle_layer(id) {
    if (document.getElementById(id).style.display=='none') {
      show_layer(id);
    } else {
      hide_layer(id);
    }
}

function show_layer(id) {
  document.getElementById(id).style.display = 'block';
}

function hide_layer(id) {
  document.getElementById(id).style.display = 'none';
}

function checkbox_on(id,value) {
     document.getElementById("checkbox_"+id).value=value;
     document.getElementById("fakecheckbox_"+id+"_off").style.display='none';
     document.getElementById("fakecheckbox_"+id+"_on").style.display='inline';
}
function checkbox_off(id) {
     document.getElementById("checkbox_"+id).value='';
     document.getElementById("fakecheckbox_"+id+"_on").style.display='none';
     document.getElementById("fakecheckbox_"+id+"_off").style.display='inline';
}

function radiobutton_on(name,no,total) {
     thisid = name+"_"+no+"_"+total;
     for (i=1;i<=total;i++) {
      if (i!=no) {
        offid = name+"_"+i+"_"+total;
        document.getElementById("radiobutton_"+offid).checked=false;
        document.getElementById("fakeradiobutton_"+offid+"_on").style.display='none';
        document.getElementById("fakeradiobutton_"+offid+"_off").style.display='inline';
      }
     }
     document.getElementById("radiobutton_"+thisid).checked=true;
     document.getElementById("fakeradiobutton_"+thisid+"_on").style.display='inline';
     document.getElementById("fakeradiobutton_"+thisid+"_off").style.display='none';
}


jQuery(document).ready(function(){
	
	jQuery('#mainnav_2').mouseenter(function() {
		jQuery('#mainnav_2 a').css("background-position","-229px -60px");
      	jQuery('#unternav_1').show();
    });
	jQuery('#mainnav_2').mouseleave(function() {
		jQuery('#mainnav_2 a').css("background-position","-229px 0px");
		jQuery('#unternav_1').hide();
   });
	jQuery('#unternav_1').mouseenter(function() {
		jQuery('#mainnav_2 a').css("background-position","-229px -60px");
      	jQuery('#unternav_1').show();
    });
	jQuery('#unternav_1').mouseleave(function() {
		jQuery('#mainnav_2 a').css("background-position","-229px 0px");
      jQuery('#unternav_1').hide();
    });

	jQuery('#mainnav_3').mouseenter(function() {
		jQuery('#mainnav_3 a').css("background-position","-354px -60px");
      jQuery('#unternav_2').show();
    });
	jQuery('#mainnav_3').mouseleave(function() {
		jQuery('#mainnav_3 a').css("background-position","-354px 0px");
      jQuery('#unternav_2').hide();
    });
	jQuery('#unternav_2').mouseenter(function() {
		jQuery('#mainnav_3 a').css("background-position","-354px -60px");
      	jQuery('#unternav_2').show();
    });
	jQuery('#unternav_2').mouseleave(function() {
		jQuery('#mainnav_3 a').css("background-position","-354px 0px");
      jQuery('#unternav_2').hide();
    });

	jQuery('#mainnav_4').mouseenter(function() {
		jQuery('#mainnav_4 a').css("background-position","-479px -60px");
      jQuery('#unternav_3').show();
    });
	jQuery('#mainnav_4').mouseleave(function() {
		jQuery('#mainnav_4 a').css("background-position","-479px 0px");
      jQuery('#unternav_3').hide();
    });
	jQuery('#unternav_3').mouseenter(function() {
		jQuery('#mainnav_4 a').css("background-position","-479px -60px");
      	jQuery('#unternav_3').show();
    });
	jQuery('#unternav_3').mouseleave(function() {
		jQuery('#mainnav_4 a').css("background-position","-479px 0px");
      jQuery('#unternav_3').hide();
    });

    jQuery('#mainnav_5').mouseenter(function() {
		jQuery('#mainnav_5 a').css("background-position","-604px -60px");
      jQuery('#unternav_4').show();
    });
	jQuery('#mainnav_5').mouseleave(function() {
		jQuery('#mainnav_5 a').css("background-position","-604px 0px");
      jQuery('#unternav_4').hide();
    });
	jQuery('#unternav_4').mouseenter(function() {
		jQuery('#mainnav_5 a').css("background-position","-604px -60px");
      	jQuery('#unternav_4').show();
    });
	jQuery('#unternav_4').mouseleave(function() {
		jQuery('#mainnav_5 a').css("background-position","-604px 0px");
      jQuery('#unternav_4').hide();
    });

    jQuery('#mainnav_6').mouseenter(function() {
		jQuery('#mainnav_6 a').css("background-position","-729px -60px");
      jQuery('#unternav_5').show();
    });
	jQuery('#mainnav_6').mouseleave(function() {
		jQuery('#mainnav_6 a').css("background-position","-729px 0px");
      jQuery('#unternav_5').hide();
    });
	jQuery('#unternav_5').mouseenter(function() {
		jQuery('#mainnav_6 a').css("background-position","-729px -60px");
      	jQuery('#unternav_5').show();
    });
	jQuery('#unternav_5').mouseleave(function() {
		jQuery('#mainnav_6 a').css("background-position","-729px 0px");
      jQuery('#unternav_5').hide();
    });
});

/* General Cookie handling */
/* Vorrangig für AdSense-Cookies. Nicht entfernen! */

/* http://www.quirksmode.org/js/cookies.html */
function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}