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

function hideintro() {
	setCookie("intro","viewed",1);
	document.getElementById("intro").style.display="none";
}
function introdelay()
{
setTimeout("hideintro()", 6000);
}