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);
}

function select_page () {

	c = readCookie("PTest2");
	if (c != null) {
		x = parseInt(c);
		if (!readCookie("PTest")) {
			createCookie ("PTest","OK",1);
			x = x + 1;
			if (x > 4) x = 1;
			createCookie ("PTest2",x,6000);
		}
   		document.getElementById('cssHolder').setAttribute('href', 'http://www.merzhase.com/style' + x + '.css');
	}
	else {
		createCookie ("PTest","OK",1);
		createCookie ("PTest2","1",6000);
	}
}