var showdiv = "";
var openDiv = "";
var close_interval = 0;
var openCongress = "";

// Browsertest
var ns6 = (!document.all&&document.getElementById) ? true:false;
var ns4 = (!document.all&&document.layers&&!document.getElementById)? true:false;
var ie4 = (document.all)? true:false;


function click_me(what, inhalt)
{
	if (document.getElementById(what).value == inhalt) 
	{
		document.getElementById(what).value="";
	}	
}

function leave_me(what, inhalt)
{
	if (document.getElementById(what).value == "") document.getElementById(what).value=inhalt;
}

function load_page(formular, seite, nummer)
{
	document.getElementById(seite).value=nummer;
	document.getElementById(formular).submit();
}


function check_tk(val)
{
	if (val == 1)
	{
		// Gesamtkarte
		document.getElementById("komplett").disabled = false;
		document.getElementById("komplett").checked = true;
		document.getElementById("tkMo").disabled = true;
		document.getElementById("tkDi").disabled = true;	
		document.getElementById("tkMi").disabled = true;	
	}
	else if (val == 2)
	{
		// Tageskarten
		document.getElementById("komplett").disabled = true;
		document.getElementById("tkMo").disabled = false;
		document.getElementById("tkMo").checked = true;
		document.getElementById("tkDi").disabled = false;	
		document.getElementById("tkMi").disabled = false;	
	
	}
}


// On Mouse over Menue X
function show_div(div)
{
	// Menue schon offen? - mache nix
	if (div == openDiv) 
	{
		clearInterval(close_interval);
		close_interval=0;
		return;
	}
	else if (openDiv != "") 
	{
		close_div(openDiv);
		openDiv="";
	}

	if (ie4) { 
		document.all[div].style.visibility='visible';
	} else if (ns4) {
		eval('document.'+div+'.visibility=\'show\'');
	} else if (ns6) {
		document.getElementById(div).style.visibility='visible';
	}

	openDiv = div;
	return; 
}

function close_div(div)
{
	// läuft Interval zum schließen des Menues??
	if (close_interval)
	{
		clearInterval(close_interval);
		close_interval=0;
	}

	if (ie4) { 
		document.all[div].style.visibility='hidden';
	} else if (ns4) {
		eval('document.'+ div +'.visibility=\'hide\'');
	} else if (ns6) {
		document.getElementById(div).style.visibility='hidden';
	}
	
	openDiv = "";
}

function out_div()
{ 
	if (openDiv != "") close_interval = setInterval("close_div(openDiv)", 800);
}

function showhide_div(showdiv, hidediv)
{
	if (ie4) { 
		document.all[showdiv].style.display='block';
		document.all[hidediv].style.display='none';
	} else if (ns4) {
		eval('document.'+showdiv+'.display=\'block\'');
		eval('document.'+hidediv+'.display=\'none\'');
	} else if (ns6) {
		document.getElementById(showdiv).style.display='block';
		document.getElementById(hidediv).style.display='none';
	}
	return; 
}


// öffne Kongress
function showCongress(congress)
{
	// Kongress schon offen
	if (openCongress == congress) {
		closeCongress();
		return;
	}
	else if (openCongress != "") {
		closeCongress();
	}

	if (ie4) { 
		document.all[congress].style.display='block';
	} else if (ns4) {
		eval('document.'+congress+'.display=\'block\'');
	} else if (ns6) {
		document.getElementById(congress).style.display='block';
	}

	openCongress = congress;
	return; 
}

function closeCongress()
{
	if (ie4) { 
		document.all[openCongress].style.display='none';
	} else if (ns4) {
		eval('document.'+ openCongress +'.display=\'none\'');
	} else if (ns6) {
		document.getElementById(openCongress).style.display='none';
	}
	
	openCongress = "";
}