function setLastActiveStyleSheet() {
	cs = document.cookie;
	var carr = cs.split(';');
	var set = 0;
	while (c=carr.shift()) {
		cname = c.substr(0,c.search('='));
		cvalue = c.substr(c.search('=')+1);
		if ((cname == "sheet" || cname == " sheet") && set == 0) {
			setActiveStyleSheet(cvalue);
			set = 1;
		}
	}
	if (set == 0) {
		setActiveStyleSheet(1);
	}
}
	   
function setActiveStyleSheet(size) {
	for(var i = 1; i < 4; i++) {
		var sheet = document.getElementById('text' + i);
		if (i == size) sheet.disabled = false;
		else sheet.disabled = true;
		document.cookie = 'sheet='+size+'; path=/;'; 
	}
}