MediaWiki:Skin/Suchttest.js

window.onload = function ()
	{
	suchtpotential = 0
	optionvalue    = 0
	if(document.getElementById("suchttest"))
		{
		makeoptions ();
		prepare (document.getElementById("numberofcategories").innerHTML);
		}
	};

function makeoptions () {
	options = document.getElementById("suchttest").getElementsByTagName("li")
	numberofoptions = options.length;
	for (var i = 0; i < numberofoptions; i++)
		{
		for (var j = 0; j < options[i].getElementsByTagName("span").length; j++)
			{
			switch (options[i].getElementsByTagName("span")[j].className)
				{
				case "testoptionvalueinner":
					optionvalue = options[i].getElementsByTagName("span")[j].innerHTML;
					break;
				case "checkbox":
					options[i].getElementsByTagName("span")[j].innerHTML = '<input type="checkbox" name="suchtoption" value="' + optionvalue + '">';
					break;
				case "testoptionvalueouter":
					options[i].getElementsByTagName("span")[j].style.display = "none";
					break;
				default:
					break;
				}
			}
		}
	document.getElementById("auswertungsknopp").innerHTML = '<input type="button" name="Auswertung" value="auswerten" onclick="auswertung(' + "'" + document.getElementById("numberofcategories").innerHTML + "'" + ')"><span id="result" style="position:absolute; right:0px; top:0px;"></span>';
	};

function auswertung (numberofcategories) {
	for (var i = 0; i < numberofoptions; i++)
		{
		if (document.getElementsByName("suchtoption")[i].checked == true)
			{
			suchtpotential = suchtpotential + Number(document.getElementsByName("suchtoption")[i].value);
			for (var j = 0; j < options[i].getElementsByTagName("span").length; j++)
				{
				if (options[i].getElementsByTagName("span")[j].className == "testoptionvalueouter")
					{
					options[i].getElementsByTagName("span")[j].style.display = "block";
					}
				}
			} else {
			for (var j = 0; j < options[i].getElementsByTagName("span").length; j++)
				{
				if (options[i].getElementsByTagName("span")[j].className == "testoptionvalueouter")
					{
					options[i].getElementsByTagName("span")[j].style.display = "none";
					}
				}
			}
		}
	var maxpoints = document.getElementById("maxpoints").innerHTML;
	var percent   = Math.round((suchtpotential / maxpoints) * 100);
	for (var i = 0; i <= numberofcategories; i++)
		{
		if(suchtpotential >= categories['min' + i] && suchtpotential <= categories['max' + i])
			{
			document.getElementById("defaulttext").innerHTML = "<ul><li><b>Du hast " + suchtpotential + " von " + maxpoints + " möglichen Punkten erreicht</b><br>" + categories['text' + i] + "</ul></li>";
			}
		}
	if(percent >= 0)
		{			
		document.getElementById("suchtomat").style.backgroundColor = 'rgb(' + percent + '%,' + (100 - percent) + '%,0%)';
		document.getElementById("suchtomat").style.height = 75 + (percent * 1.55) + 'px';
		}
	document.getElementById("result").innerHTML = '(' + suchtpotential + ' Punkte)'
	suchtpotential = 0;
	};

function prepare (numberofcategories) {
	categories = new Array();
	for (var i = 0; i <= numberofcategories; i++)
		{
		categories['min' + i]  = document.getElementById('min' + i).innerHTML;
		categories['max' + i]  = document.getElementById('max' + i).innerHTML;
		categories['text' + i] = document.getElementById('text' + i).innerHTML;
		}
	document.getElementById("auswertungstext").style.display = "none";
	document.getElementById("defaulttext").style.display     = "inline";
	};