//	------------------------------------------------------------------------------------------
// dd.mm.yyyy	Author	Changes
// 20.12.2001	Seliger	DOM2-adaption
// 24.09.2002	Haddorp	Add additional parameter to popup function

var pictures = new Array();
var bVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1),10);
var preLoadIsComplete = false;
var oldImg = "";
var oldCnt;
//	------------------------------------------------------------------------------------------

if (location.href.indexOf('https') != -1) {
	var httpUrl = 'http://' + location.hostname + location.pathname + location.search;
	location.href = httpUrl;
}

function findElement(n,ly) {
	var curDoc = ly ? ly.document : document;
	var elem = curDoc[n];
	if (bVers < 4) {
		return document[n];
	}
	if (!elem) {
		for (var i=0;i<curDoc.layers.length;i++) {
			elem = findElement(n,curDoc.layers[i]);
			if (elem) {
				return elem;
			}
		}
	}
	return elem;
}

function NSStyle(s) {
	return findElement(s,0);
}
function IEStyle(s) {
	if(document.all.tags("div")[s]) {
		return document.all.tags("div")[s].style;
	} else {
		return false;
	}
}
/*function DOMStyle(s) {
	if(document.getElementById("div")[s]) {
		return document.getElementById("div")[s].style;
	}
	else {
		return false;
	}
}*/
//	------------------------------------------------------------------------------------------

function activeImageConstructor(aName,aLowlightSrc,aHighlightSrc) {
	this.name  = aName;
	this.lowLight  = new Image();
	this.lowLight.src  = aLowlightSrc;
	this.highLight  = new Image();
	this.highLight.src  = aHighlightSrc;
}


function preLoad() {
	var preLoadedImgs = "";
	inPreload = true;
	if (document.all) {
		for (var i=0; i<document.all.tags("div").length; i++) {
			for (var j=0; j<document.all.tags("div")[i].document.images.length; j++) {
				if (document.all.tags("div")[i].document.images[j].name) {
					if ( preLoadedImgs.indexOf(document.all.tags("div")[i].document.images[j].name + ";") < 0) {
						var imgSrc = document.all.tags("div")[i].document.images[j].src;
						var tmpPrefix = imgSrc.substr(0,imgSrc.length-4);
						var tmpSuffix = imgSrc.substr(imgSrc.length-4,imgSrc.length-1);
						var tmpActiveSrc = tmpPrefix + "-a" + tmpSuffix;
						var IEFix = new activeImageConstructor(document.all.tags("div")[i].document.images[j].name,document.all.tags("div")[i].document.images[j].src,tmpActiveSrc);
						var tmpData = new Array(IEFix);
						pictures = pictures.concat(tmpData);
						preLoadedImgs = preLoadedImgs.concat(document.all.tags("div")[i].document.images[j].name + ";");
					}
				}
			}
		}
	}
	else if (document.getElementsByTagName) {
		for (var i=0; i<document.getElementsByTagName("img").length; i++) {
			if (document.getElementsByTagName("img")[i].name) {
				if ( preLoadedImgs.indexOf(document.getElementsByTagName("img")[i].name + ";") < 0) {
					var imgSrc = document.getElementsByTagName("img")[i].src;
					var tmpPrefix = imgSrc.substr(0,imgSrc.length-4);
					var tmpSuffix = imgSrc.substr(imgSrc.length-4,imgSrc.length-1);
					var tmpActiveSrc = tmpPrefix + "-a" + tmpSuffix;
					var IEFix = new activeImageConstructor(document.getElementsByTagName("img")[i].name,document.getElementsByTagName("img")[i].src,tmpActiveSrc);
					var tmpData = new Array(IEFix);
					pictures = pictures.concat(tmpData);
					preLoadedImgs = preLoadedImgs.concat(document.getElementsByTagName("img")[i].name + ";");
				}
			}
		}
	}
	else if (document.layers) {
		for (var i=0; i<document.layers.length; i++) {
			for (var j=0; j<document.layers[i].document.images.length; j++) {
				if (document.layers[i].document.images[j].name) {
					var imgSrc = document.layers[i].document.images[j].src;
					var tmpPrefix = imgSrc.substr(0,imgSrc.length-4);
					var tmpSuffix = imgSrc.substr(imgSrc.length-4,imgSrc.length-1);
					var tmpActiveSrc = tmpPrefix + "-a" + tmpSuffix;
					var IEFix = new activeImageConstructor(document.layers[i].document.images[j].name,document.layers[i].document.images[j].src,tmpActiveSrc);
					var tmpData = new Array(IEFix);
					pictures = pictures.concat(tmpData);
				}
			}
		}
	}
//	---
	for (var i=0; i<document.images.length; i++) {
		if (document.images[i].name) {
			if ( preLoadedImgs.indexOf(document.images[i].name) == -1) {
				var imgSrc = document.images[i].src;
				var tmpPrefix = imgSrc.substr(0,imgSrc.length-4);
				var tmpSuffix = imgSrc.substr(imgSrc.length-4,imgSrc.length-1);
				var tmpActiveSrc = tmpPrefix + "-a" + tmpSuffix;
				var IEFix = new activeImageConstructor(document.images[i].name,document.images[i].src,tmpActiveSrc);
				var tmpData = new Array(IEFix);
				pictures = pictures.concat(tmpData);
			}
		}
	}
	inPreload = false;
	preLoadIsComplete = true;
}
//	------------------------------------------------------------------------------------------

function mouseOver(aPic) {
	if (preLoadIsComplete) {
		for (var i=0; i<pictures.length; i++) {
			if (pictures[i].name == aPic) {
				if (oldImg.length > 0) {
					eval("document.images." + oldImg + ".src = pictures[" + oldCnt + "].lowLight.src");
				}
				eval("document.images." + aPic + ".src = pictures[" + i + "].highLight.src");
				oldImg = aPic;
				oldCnt = i;
				break;
			}
		}
	}
	else {
		preLoad();
		mouseOver(aPic);
	}
}

function mouseOut(aPic) {
	oldImg = "";
	if (preLoadIsComplete) {
		for (var i=0; i<pictures.length; i++) {
			if (pictures[i].name == aPic) {
				eval("document.images." + aPic + ".src = pictures[" + i + "].lowLight.src");
				break;
			}
		}
	}
	else {
		preLoad();
		mouseOut(aPic);
	}
}
//	------------------------------------------------------------------------------------------

function layerMouseOver(aPic,aLayer) {
	if (preLoadIsComplete) {
		for (var i=0; i<pictures.length; i++) {
			if (pictures[i].name == aPic) {
				if (document.all) {
					//eval("document.all.tags('div')."+aLayer+".document.images['"+aPic+"'].src = pictures["+i+"].highLight.src");
					document.all.tags("img")[aPic].src = pictures[i].highLight.src;
				}
				else if (document.getElementsByTagName) {
					document.getElementsByTagName("img")[aPic].src = pictures[i].highLight.src;
				}
				else if (document.layers) {
					if (oldImg.length > 0) {
						eval("NSStyle('"+aLayer+"').document.images['"+oldImg+"'].src = pictures["+oldCnt+"].lowLight.src");
					} else {
						eval("NSStyle('"+aLayer+"').document.images['"+aPic+"'].src = pictures["+i+"].highLight.src");
					}
				}
				break;	
			}
		}
	} else {
		preLoad();
		layerMouseOver(aPic,aLayer);
	}
}

function layerMouseOut(aPic,aLayer) {
	oldImg = "";
	if (preLoadIsComplete) {
		for (var i=0; i<pictures.length; i++) {
			if (pictures[i].name == aPic) {
				if(document.all) {
					//eval("document.all.tags('div')."+aLayer+".document.images['"+aPic+"'].src = pictures["+i+"].lowLight.src");
					document.all.tags("img")[aPic].src = pictures[i].lowLight.src;
				}
				else if (document.getElementsByTagName) {
					document.getElementsByTagName("img")[aPic].src = pictures[i].lowLight.src;
				}
				else if (document.layers) {
					eval("NSStyle('"+aLayer+"').document.images['"+aPic+"'].src = pictures["+i+"].lowLight.src");
				}
				break;	
			}
		}
	} else {
		preLoad();
		layerMouseOut(aPic,aLayer);
	}
}
//	------------------------------------------------------------------------------------------

function vSwitch(aLayer,aBool) {
	if (preLoadIsComplete) {
		if (document.all) {
			//if(IEStyle(aLayer))
			if (document.all.tags("div")[aLayer]) {
				//IEStyle(aLayer).visibility = (aBool == 0) ? "hidden" : "visible";
				document.all.tags("div")[aLayer].style.visibility = ((aBool == 0) ? "hidden" : "visible");
			}
		}
		else if (document.getElementById) {
			if (document.getElementById(aLayer)) {
				document.getElementById(aLayer).style.visibility = (aBool == 0) ? "hidden" : "visible";
			}
		}
		else if (document.layers) {		
			if (NSStyle(aLayer)) {
				NSStyle(aLayer).visibility = ((aBool == 0) ? "hide" : "show");
			}
		}
	} else {
		preLoad();
		vSwitch(aLayer,aBool);
	}
}

function isVisible(aLayer) {
	if (preLoadIsComplete) {
		if (document.all) {
			//if(IEStyle(aLayer))
			if (document.all.tags("div")[aLayer]) {
				return (IEStyle(aLayer).visibility == 'visible');
			}
		}
		else if (document.getElementById) {
			if (document.getElementById(aLayer)) {
				return (document.getElementById(aLayer).style.visibility == 'visible');
			}
		}
		else if (document.layers) {
			if (NSStyle(aLayer)) {
				return (NSStyle(aLayer).visibility == 'show');
			}
		}
	} else {
		preLoad();
		isVisible(aLayer);
	}
}
//	------------------------------------------------------------------------------------------

function popUp(url, width, height, scroll, windowName) {
	if (scroll == "yes") {
		width = String(width + 10);
	}
	if (!windowName) {
		windowName = "";
	}
	if (navigator.appVersion.indexOf("Win") == -1) {
		popupwin = window.open(url, windowName, "width="+width+",height="+height+",toolbar=yes,scrollbars="+scroll+",resizable="+scroll);
		popupwin.focus();
	}
	else {
		popupwin = window.open(url, windowName, "width="+width+",height="+height+",scrollbars="+scroll+",resizable="+scroll);
		popupwin.focus();
	}
}

//	------------------------------------------------------------------------------------------

function getElement(name) {
	if (document.all) {
		return eval("document.all." + name + ".style");
	}
	else if (document.getElementById) {
		return document.getElementById(name).style;
	}
	else if (document.layers) {
		for (var i = document.layers.length - 1; i >= 0; i--) {
			if (document.layers[i].name == name) {
				return eval("document.layers." + name);
			} else {
				for (var h = document.layers[i].document.layers.length - 1; h >= 0; h--) {
					if (document.layers[i].document.layers[h].name == name) {
						return eval("document.layers["+ i +"].document.layers." + name);
					} else {
						for (var g = document.layers[i].document.layers[h].document.layers.length - 1; g >= 0; g--) {
							if (document.layers[i].document.layers[h].document.layers[g].name == name) {
								return eval("document.layers["+ i +"].document.layers["+ h + "].document." + name);
							}
						}
					}
				}
			}
		}
	}
}

function getElementPure(name) {
	if (document.all) {
		return eval("document.all." + name);
	}
	else if (document.getElementById) {
		return document.getElementById(name);
	}
	else if (document.layers) {
		for (var i = document.layers.length - 1; i >= 0; i--) {
			if (document.layers[i].name == name) {
				return eval("document.layers." + name);
			}
			else {
				for (var h = document.layers[i].document.layers.length - 1; h >= 0; h--) {
					if (document.layers[i].document.layers[h].name == name) {
						return eval("document.layers["+ i +"].document.layers." + name);
					}
					else {
						for (var g = document.layers[i].document.layers[h].document.layers.length - 1; g >= 0; g--) {
							if (document.layers[i].document.layers[h].document.layers[g].name == name) {
								return eval("document.layers["+ i +"].document.layers["+ h + "].document.layers." + name);
							}
						}
					}
				}
			}
		}
	}
}
//	------------------------------------------------------------------------------------------

function getForm(layer,form) {
	if (document.all) {
		return document.forms[form];
	}
	else if (document.getElementsByTagName) {
		return document.getElementsByTagName("form")[form];
	}
	else if (document.layers) {
		return getElement(layer).document.forms[form];
	}
}

function saveValueToForm(layer,form,formvalue) {
	getForm('signuplayercontent','signup').academic.value = formvalue;
}

function submitLayerForms(whichLayer,whichForm) {
	if (document.all) {
		document.all.tags("div")[whichLayer].document.forms[whichForm].submit();
	}
	else if (document.getElementsByTagName) {
		document.getElementsByTagName("form")[whichForm].submit();
	}
	else if (document.layers) {
		getElementPure(whichLayer).document.forms[whichForm].submit();
	}
}
//	------------------------------------------------------------------------------------------

function teaserColor(whichTeaser,whichValue) {
	if (document.all) {
		if (whichValue == "1") {
			document.all[whichTeaser+"header"].style.color = "#003399";
			document.all[whichTeaser+"copy"].style.color = "#003399";
		}
		if (whichValue == "0") {
			document.all[whichTeaser+"header"].style.color = "#666666";
			document.all[whichTeaser+"copy"].style.color = "#666666";
		}
	}
	else if (document.getElementsByName) {
		if (whichValue == "1") {
			document.getElementsByName(whichTeaser+"header")[0].style.color = "#003399";
			document.getElementsByName(whichTeaser+"copy")[0].style.color = "#003399";
		}
		if (whichValue == "0") {
			document.getElementsByName(whichTeaser+"header")[0].style.color = "#666666";
			document.getElementsByName(whichTeaser+"copy")[0].style.color = "#666666";
		}
	}
	/*	the naming off all sections that will be used by this very function "teaserColor"
		is done by using the object-reference "name" instead of "id";
		considering this, the function for "DOM level 2" looks alike the above one;
	 
		in case there are doubts about the naming-consistents of all teasers - maybe someone starts
		mixing the references ("id" instead of "name" or using both of 'em) - the following lines
		can be used as a patch for those inconsistencies;

		( but most adviseable is to keep the naming like it is now, since the patch is "heavy" )	*/

	/*else if ((document.getElementsByName) || (document.getElementById)) {
		if (whichValue == "1") {
			if (document.getElementsByName(whichTeaser+"header")[0]) {
				document.getElementsByName(whichTeaser+"header")[0].style.color = "#003399";
			}
			else if (document.getElementById(whichTeaser+"header")) {
				document.getElementById(whichTeaser+"header").style.color = "#003399";
			}
			if (document.getElementsByName(whichTeaser+"copy")[0]) {
				document.getElementsByName(whichTeaser+"copy")[0].style.color = "#003399";
			}
			else if (document.getElementById(whichTeaser+"copy")) {
				document.getElementById(whichTeaser+"copy").style.color = "#003399";
			}
		}
		if (whichValue == "0") {
			if (document.getElementsByName(whichTeaser+"header")[0]) {
				document.getElementsByName(whichTeaser+"header")[0].style.color = "#666666";
			}
			else if (document.getElementById(whichTeaser+"header")) {
				document.getElementById(whichTeaser+"header").style.color = "#666666";
			}
			if (document.getElementsByName(whichTeaser+"copy")[0]) {
				document.getElementsByName(whichTeaser+"copy")[0].style.color = "#666666";
			}
			else if (document.getElementById(whichTeaser+"copy")) {
				document.getElementById(whichTeaser+"copy").style.color = "#666666";
			}
		}
	}*/
}
//	------------------------------------------------------------------------------------------

function setTabIndex() {
	if (document.all) {
		//alert("setTabIndex");
		var searchedField = null;
		var myForm = null;
		var currLayer = null;
		var currentForm = null;
		for (var j=0;j<formFieldArray.length;j++) {
			searchedField = formFieldArray[j];
			for (var i=0;i<layerArray.length;i++) {
				currentLayer = layerArray[i];
				currentForm = formArray[i];
				//var myForm = getElementPure(currentLayer).document.forms[currentForm];
				myForm = document.all.tags("div")[currentLayer].document.forms[currentForm];
				for (var k=0;k<myForm.length;k++) {
					if (myForm.elements[k].name == searchedField) {
						foundField = myForm.elements[k];
						foundField.tabIndex = j+1;
					}
				}
			}
		}
	}
	else if (document.getElementsByTagName) {
		var searchedField = null;
		var myForm = null;
		var currLayer = null;
		var currentForm = null;
		for (var j=0;j<formFieldArray.length;j++) {
			searchedField = formFieldArray[j];
			for (var i=0;i<layerArray.length;i++) {
				currentLayer = layerArray[i];
				currentForm = formArray[i];
				myForm = document.getElementsByTagName("form")[currentForm];
				for (var k=0;k<myForm.length;k++) {
					if (myForm.elements[k].name == searchedField) {
						foundField = myForm.elements[k];
						foundField.tabIndex = j+1;
					}
				}
			}
		}
	}
}
//	------------------------------------------------------------------------------------------