var currentpage = "";

/*
** Usage: creates a cookie called CURRENTPAGE (set in startUp function) set to VALUE with expiry time TIMEOUT minutes ahead.
*/

function createCookie(value, timeout) {
	var date = new Date();
	date.setTime(date.getTime()+(timeout*60*1000));
	var expires = "; expires="+date.toGMTString();

	document.cookie = currentpage+"="+value+expires+"; path=/";
}

function readCookie() {
	var nameEQ = currentpage + "=";
	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 startUp( page ) {
	setPage( page );
	var cook = readCookie();
	if ( cook == null ) {
		show_details( "00" );
	} else {
		show_details( cook );
	}
}

function setPage( page ) {
	currentpage = page;
}