// show a string up until the given date. NOTE: Months are 1-12.
    function showstrbefore(yr,mo,dt,str) {
		var d = new Date();
		var d2 = new Date(yr,mo-1,dt);
		if (d < d2) document.write(str);
    }
    // show a string up after a given date until a given date. NOTE: Months are 1-12.
    function showstrduring(yr1,mo1,dt1,yr2,mo2,dt2,str) {
		var d = new Date();
		var d1 = new Date(yr1,mo1-1,dt1);
		var d2 = new Date(yr2,mo2-1,dt2);
		if ((d >= d1) && (d < d2)) document.write(str);
    }
    // show a string up after a given date. NOTE: Months are 1-12.
    function showstrafter(yr1,mo1,dt1,str) {
		var d = new Date();
		var d1 = new Date(yr1,mo1-1,dt1);
		if (d >= d1) document.write(str);
    }