function getElementsByClassName(name) {
	var results = new Array();
	var elems = document.getElementsByTagName("*");
	for (var i=0; i<elems.length; i++) {
		if (elems[i].className.indexOf(name) != -1) {
			results[results.length] = elems[i];
		}
	}
	return results;
}

function correctIEPNG() // correctly handle PNG transparency in Win IE 5.5 or higher.
{
	if (!document.all) return;
	for(var i=0; i<document.images.length; i++)
	{
		var img = document.images[i]
		var imgName = img.src.toUpperCase()
		if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
		{	
			img.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, src='"+img.src+"');"
			img.src = "/images/elemente/leer.gif";
			/*
			var imgID = (img.id) ? "id='" + img.id + "' " : ""
			var imgClass = (img.className) ? "class='" + img.className + "' " : ""
			var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
			var imgStyle = "display:inline-block;" + img.style.cssText
			var imgAttribs = img.attributes;
			for (var j=0; j<imgAttribs.length; j++)
			{
				var imgAttrib = imgAttribs[j];
				if (imgAttrib.nodeName == "align")
				{
					if (imgAttrib.nodeValue == "left") imgStyle = "float:left;" + imgStyle
					if (imgAttrib.nodeValue == "right") imgStyle = "float:right;" + imgStyle
					break
				}
			}
			var strNewHTML = "<span " + imgID + imgClass + imgTitle
			strNewHTML += " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
			strNewHTML += "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
			strNewHTML += "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>"
			img.outerHTML = strNewHTML
			i = i-1
			*/
		}
	}
}

function getElementsByTagNameAndClassName(tag, name) {
	var results = new Array();
	var elems = document.getElementsByTagName(tag);
	for (var i=0; i<elems.length; i++) {
		if (elems[i].className.indexOf(name) != -1) {
			results[results.length] = elems[i];
		}
	}
	return results;
}

function bilderGalerieZaehler() {
	var bapfeillinks = getElementsByTagNameAndClassName("A", "ba_pfeil");
	if (bapfeillinks.length>0) {
		if (document.getElementById("ba_bildanzahl")) {
			document.getElementById("ba_bildanzahl").innerHTML = (bapfeillinks.length+1);
		}
	}
	
}
function bilderGalerieFenster() {
	if (document.getElementById("id_abbzoom")) {
		var offsetHoehe = 150;
		var offsetBreite = 35;
		var minBreite = 230;
		if (document.getElementById('id_abbzoom').width < minBreite) offsetBreite += 30;
		hoehe = document.getElementById("id_abbzoom").height+offsetHoehe;
		if (navigator.userAgent.search(/MSIE 7./) != -1) hoehe = hoehe + 22;
		self.resizeTo(640, hoehe);
	} else {
		self.close();
	}
}
function prepareGrafikCheckboxen() {
	if (navigator.userAgent.indexOf('Safari') != -1) return;
	var grachkbxelemente = getElementsByTagNameAndClassName("label", "grafikcheckbox");
	for (var i=0; i<grachkbxelemente.length; i++) {
		if (grachkbxelemente[i].getElementsByTagName('input')[0]) {
			grachkbxelemente[i].getElementsByTagName('input')[0].className = grachkbxelemente[i].getElementsByTagName('input')[0].className + " grafikcheckbox";
			grachkbxelemente[i].id = 'grafikcheckbox_' + grachkbxelemente[i].getElementsByTagName('input')[0].id;
			grachkbxelemente[i].getElementsByTagName('input')[0].onchange = function() {
				if (this.checked) {
					document.getElementById('grafikcheckbox_'+this.id).className = "grafikcheckbox grachkbx-aktiv";
				} else {
					document.getElementById('grafikcheckbox_'+this.id).className = "grafikcheckbox grachkbx-inaktiv";
				}
			}
			grachkbxelemente[i].getElementsByTagName('input')[0].onclick = function() {
				if (this.checked) {
					document.getElementById('grafikcheckbox_'+this.id).className = "grafikcheckbox grachkbx-aktiv";
				} else {
					document.getElementById('grafikcheckbox_'+this.id).className = "grafikcheckbox grachkbx-inaktiv";
				}
			}
			if (grachkbxelemente[i].getElementsByTagName('input')[0].checked) {
				document.getElementById('grafikcheckbox_'+grachkbxelemente[i].getElementsByTagName('input')[0].id).className = "grafikcheckbox grachkbx-aktiv";
			} else {
				document.getElementById('grafikcheckbox_'+grachkbxelemente[i].getElementsByTagName('input')[0].id).className = "grafikcheckbox grachkbx-inaktiv";
			}
		}
	}
}

function initFunctions() {
	//correctIEPNG();
	prepareGrafikCheckboxen();
}

window.onload = initFunctions;