function announcement(gigDay,gigMonth,gigYear,announce)
{
//format input date into UTC
var tourdate = (((gigYear*10000)+gigMonth*100)+gigDay); 
var d = new Date()
var year = d.getFullYear()			// Get year in yyyy
var month1 = d.getMonth()		// Get month in mm - these are numbered 0-11
var date = d.getDate()			// Get day in range 1-31 as dd
month = (month1+1)				// add 1 to month which are normally numbered 0-11

var dm = (month*100)+date;
var yyyy = (year*10000);
var today = (yyyy+dm);

	if
	(tourdate >= today)
	{
 	document.write(announce)
	}
}