// style festlegen
function setCSSStyle(css,startup) {
 	document.getElementById('CSS1').disabled=true;
 	document.getElementById('CSS2').disabled=true;
 	document.getElementById('CSS3').disabled=true;
 	//document.getElementById('CSS4').disabled=true;
 	document.getElementById('CSS'+css).disabled=false;
	eraseCookie('currCSSStyle');
	createCookie('currCSSStyle',css,'1');
	//if (startup!='loadPage') {
		setTimeout('setCSSButton('+css+')', 600);
	//	}
}

// button setzen
function setCSSButton(id) {
	//document.getElementById('schriftgroesse').src = "/cvag/daten_cvag/subnavi/schriftgroesse"+id+".gif";
	document.getElementById('schriftgroesse').src = "/daten_cvag/subnavi/schriftgroesse"+id+".gif";
}

// aktuellen cssstyle abfragen
var tempCurrCSSStyle;
function setCSSLoadPage() {
	if (!readCookie('currCSSStyle')) {
		document.getElementById('CSS1').disabled=false;
		tempCurrCSSStyle='1';
	} else {
		tempCurrCSSStyle=readCookie('currCSSStyle')
		setCSSStyle(tempCurrCSSStyle,'loadPage');
	}
}

setCSSLoadPage();

// Cookie handling
function createCookie(name,value,hours)
{
 	if (hours)
 	{
 		var date = new Date();
 		date.setTime(date.getTime()+(hours*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);
}