function getWeatherImage(sunrise,sunset,weatherText,weatherImage) {


var currentTime = new Date();

var itIsSunrise=isItSunrise(sunrise,currentTime);
var itIsSunset=isItSunset(sunset,currentTime);

if (itIsSunrise){
    weatherText="Sonnenaufgang";
    weatherImage="sunrise";
}

if (itIsSunset){
    weatherText="Sonnenuntergang";
    weatherImage="sunset";
}

return '<img width="40" height="40" alt="'+weatherText+'" text="'+weatherText+'" src="http://elternweb.at/fileadmin/elternweb/template/script/weatherpics/'+weatherImage+'.png">';



}



function isItSunrise(sunrise,currentTime) {

    var sunriseTemporary=sunrise.split(":");
    var sunriseHour=sunriseTemporary[0];
    var sunriseTemp=sunriseTemporary[1].split(" ");
    var sunriseMinute=sunriseTemp[0];


    var currentHour = currentTime.getHours();
    var currentMinute = currentTime.getMinutes();


    if (currentHour==sunriseHour) {
        if (currentMinute>sunriseMinute) {
            return true;
        }
        else 
            return false;
    }

    if (currentHour==(sunriseHour+1)) {
        return true;
    }

    return false;

}






function isItSunset(sunset,currentTime) {

    var sunsetTemporary=sunset.split(":");
    var sunsetHour=sunsetTemporary[0];
    var sunsetTemp=sunsetTemporary[1].split(" ");
    var sunsetMinute=sunsetTemp[0];


    var currentHour = currentTime.getHours()-12;
    var currentMinute = currentTime.getMinutes();



    if (currentHour<4)
          return false;



    if (currentHour==sunsetHour) {
          if (currentMinute>sunsetMinute) {
              return true;
          }
          else 
              return false;
    }

    if (currentHour==(sunsetHour+1)) {
        return true;
    }

    return false;

}



function clock() {
   var date = new Date();
   var year = date.getYear();
   var month = date.getMonth();
   
   var day = date.getDate();
   var hour = date.getHours();   

   var months = new Array("J&auml;nner", "Februar", "M&auml;rz", "April", "Mai", "Juni", "Juli", "August", "September", "Oktober", "November", "Dezember");
   var monthname = months[month];   

	if (year < 1900) {
		year += 1900;
	}

   document.write( day + ". " + monthname + ", " + year);
  
}