// function to check value
function check()
{
	var x = document.getElementById("wert1");
	if (x.value >= 1  && x.value <= 10 ) 
	{ 
		return true;
	}
	else 
	{ 
		alert ("Enter Flowrate between 1 and 10");
		document.getElementById("wert1").value = "";
		return false;
	}
}

function check_heizung(raum) {
	var ist_min = document.getElementById("ist_" + raum + "_min").innerText;
	var soll_min = document.getElementById("soll_" + raum + "_min").value;
	var ist_max = document.getElementById("ist_" + raum + "_max").innerText;
	var soll_max = document.getElementById("soll_" + raum + "_max").value;

	console.log('ist min ' + ist_min);
	console.log('soll min ' + soll_min);
	console.log('ist max ' + ist_max);
	console.log('soll max ' + soll_max);

	if (soll_min != null) { 
		if (soll_min >= ist_max) {
		alert ("Temperatur muss kleiner sein als max");
		document.getElementById("soll_" + raum + "_min").value = "";
		}
		return false;
	}
	else 
	{ 
		return true;
	}
	
	if (soll_max != null) { 
		if (soll_max <= ist_min) {
		alert ("Temperatur muss kleiner sein als max");
		document.getElementById("soll_" + raum + "_max").value = "";
		}
		return false;
	}
	else 
	{ 
		return true;
	}
}

function heizt_icon(label, status) {
	//console.log(label);
	if (status == 1) {
	document.getElementById(label).src = "images/heizt1.png";
	}
	else {
	document.getElementById(label).src = "images/heizt0.png";
	}
	return(label, status);
}

function leuchtet_icon(label, status) {
	//console.log(label);
	if (status == 1) {
	document.getElementById(label).src = "images/lampe1.jpg";
	}
	else {
	document.getElementById(label).src = "images/lampe0.jpg";
	}
	return(label, status);
}

function strom_icon(label, status) {
	//console.log(label);
	if (status == 1) {
	document.getElementById(label).src = "images/blitz0.jpg";
	}
	else {
	document.getElementById(label).src = "images/blitz1.jpg";
	}
	return(label, status);
}

function wasser_icon(label, status) {
	//console.log(label);
	if (status == 1) {
	document.getElementById(label).src = "images/wasser0.jpg";
	}
	else {
	document.getElementById(label).src = "images/wasser1.jpg";
	}
	return(label, status);
}

function urlaub_icon(label, status) {
	//console.log(label);
	if (status == 1) {
	document.getElementById(label).src = "images/urlaub1.jpg";
	}
	else {
	document.getElementById(label).src = "images/urlaub0.jpg";
	}
	return(label, status);
}