var prayer_box;
    var alert_box_string;
    var bonetid;
    var bonen_har_gatt_in = false;
    var bodyBottomPadding = 0;
    
function prayerAlert(){
    prayer_box = document.getElementById("prayer_box");
    alert_box_string = "<b>Isha</b>";
    countdown(01, 04);
    bonetid = "19:11";
    nonscroll();
    
    prayer_box.style.right = (document.getElementById("body").offsetLeft + 650) + "px";
    fadein();
    tOut = setTimeout("fadeout()",5000);
}

function countdown(hours, minutes){
    if(hours != 0 || minutes != 0){
        minutes--;
        
        if(minutes < 0){
            minutes += 60;
            hours--;
        }
        
        var message = "nästa bön:<br />" + alert_box_string + "<br />(";
        
        if(hours > 0)
            message += hours + "h " + minutes + "m kvar)";
        else
            message += minutes + " minuter kvar)";
        
        prayer_box.innerHTML = message;
    }
    
    if(hours == 0 && minutes == 0){
        prayer_box.style.border = 'solid 2px #B00000';
        prayer_box.style.borderRight = 'none';
        prayer_box.style.backgroundColor = '#FFFFF2';
        prayer_box.innerHTML = "bönen har gått in<br />" + alert_box_string + "<br />(" + bonetid + ")";
        bonen_har_gatt_in = true;
        tOut = null;
        fadein();
        return;
    }
    
    setTimeout("countdown(" + hours + ", " + minutes + ")",60000);
}

function nonscroll() {
    bodyBottomPadding = max(0, max(document.body.clientHeight, max(window.innerHeight, document.documentElement.clientHeight)) - document.getElementById("body").offsetHeight + bodyBottomPadding);
    document.getElementById("body").style.paddingBottom = bodyBottomPadding + 'px';

    document.getElementById("prayer_box").style.top = document.documentElement.scrollTop + 150;
    prayer_box.style.right = (document.getElementById("body").offsetLeft + 650) + "px";
    setTimeout("nonscroll()",100);
}

var curr = 0, tOut, step = 20;

function fadein() {
    return;
	clearTimeout(tOut);
	curr += step;
	if (curr > 100) curr = 100;
	prayer_box.style.visibility = 'visible';
	if( prayer_box.style ) prayer_box.style.filter = 'alpha(opacity=' + curr + ')';
	prayer_box.style.MozOpacity = curr * 0.01;
	if (curr < 100)
        tOut = setTimeout("fadein();", 20);
}

function fadeout() {
    if(bonen_har_gatt_in) return;

	clearTimeout(tOut);
	curr -= step;
	if ( curr <= 0 ) {
		curr = 0;
		prayer_box.style.visibility = 'hidden';
	} else {
		prayer_box.style.visibility = 'visible';
		if( prayer_box.style ) prayer_box.style.filter = 'alpha(opacity=' + curr + ')';
		prayer_box.style.MozOpacity = curr * 0.01;
	}
	if (curr > 0) tOut = setTimeout("fadeout('" + prayer_box + "');", 20);
}

function max(left,right){
    if(typeof(left) != 'number')
        return right;
    if(typeof(right) != 'number')
        return left;
    
    return left < right ? right : left;
}