var names = new Array("comments", "calendar", "categories", "tags");

function setCookie(c_name,value,expiredays,path)
{
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	document.cookie=c_name+ "=" +escape(value)
		+((expiredays==null) ? "" : ";expires="+exdate.toGMTString())
		+((path ==null) ? "" : ";path="+path);
}

function setTab(tabName) {
	setCookie('activeTab',tabName,365,'/');
	
	for (var i = 0; i < names.length; ++i) {
		document.getElementById('tab-'+names[i]).className="";
		document.getElementById('box-'+names[i]).className="hidden";
	}
	document.getElementById('tab-'+tabName).className="active";
	document.getElementById('box-'+tabName).className="";
}