var tempCSSstyle;

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 ca = document.cookie.split(';');
	var cname = name + "=";
	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(cname) == 0) return c.substring(cname.length,c.length);
	}
	return null;
}

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


function setusedCSSstyle(css) {
 	document.getElementById('CSS1').disabled=true;
 	document.getElementById('CSS2').disabled=true;
 	document.getElementById('CSS3').disabled=true;
 	document.getElementById('CSS'+css).disabled=false;
	eraseCookie('CSSstyle');
	createCookie('CSSstyle',css,'1');
}

function setusedCSSLoadPage() {
	if (!readCookie('CSSstyle')) {
		document.getElementById('CSS1').disabled=false;
		tempCSSstyle='1';
	} else {
		tempCSSstyle=readCookie('CSSstyle')
		setusedCSSstyle(tempCSSstyle);
	}
}

setusedCSSLoadPage();