var sun_rise_time;
var sun_set_time;

function calc_srss()
{
	var lat = 51.413;	/* for EDLR */
	var lon = 8.465;	/* for EDLR */
	
	toDay = new Date();
	var year = toDay.getYear();

	if (year < 1900)	// **** fixed 2000-01-03
		year += 1900;

	var month = (toDay.getMonth() + 1);
	var day =  toDay.getDate();

	sunRiseSet(year, month, day, lat, lon);    

	var sris_h = Math.floor(sRiseT);
	var sris_m = Math.floor((sRiseT - sris_h) * 60);

	var sset_h = Math.floor(sSetT);
	var sset_m = Math.floor((sSetT - sset_h) * 60);

	if(sris_h < 10)
		sris_h = "0" + sris_h;

	if(sris_m < 10)
		sris_m = "0" + sris_m;

	if(sset_h < 10)
		sset_h = "0" + sset_h;

	if(sset_m < 10)
		sset_m = "0" + sset_m;

	sun_rise_time = sris_h + ":" + sris_m;
	sun_set_time  = sset_h + ":" + sset_m;
}