function Suche(strId)
{
	// Suchfeld ermitteln
	var oFeld = document.getElementById(strId);
	if (oFeld)
	{
		var strWert = oFeld.value;

		// leere Sucheingabe ?
		//alert(strWert);
		if (strWert != "")
		{
			return (true);
		}
	}

	return (false);
} // Suche

function FeldWertSetzen(strFeld, strWert)
{
	oFeld = document.getElementsByName(strFeld)[0];
	if (oFeld)
	{
		oFeld.value = strWert;
	}
	
} // FeldWertSetzen

function FeldWeiter(e, Quelle, Ziel, Laenge)
{
	if (!e) var e = window.event;

	// Keine Controlchars
	if (e.keyCode > 32)
	{
		if (Quelle.value.length == Laenge)
		{
			Ziel.focus();
		}
	}
		
} // FeldWeiter

function BildAendern(strId, strBild)
{
	// Bild ermitteln
	var oBild = document.getElementById(strId);

	// Bild ändern	
	oBild.src = strBild;

	return;
} // BildAendern

function preloadImages(arrayTagIds){
	for (key in arrayTagIds) {
		preloadImage(arrayTagIds[key]);
	}
}

// function to preload the main nav highlight images
var highlightImages = new Array;
function preloadImage(tagId){
	// create & save highlight image
	path = '/img/header/navigation/';
	highlightImages[tagId] = new Image();
	highlightImages[tagId].src = path+tagId+"_2.gif";
	return;
}


// function to highlight the main nav buttons
function swapImage(tagId){
	// find image
	actualImage = document.getElementById(tagId);
	// if off or on is defined use it and return:
	if (actualImage.src == actualImage.onImage){
		actualImage.src = actualImage.offImage;
		return;
	}
	if (actualImage.src == actualImage.offImage){
		actualImage.src = actualImage.onImage;
		return;
	}
	// else: use the preloaded one and save it in the image obj..
	actualImage.offImage = actualImage.src
	actualImage.onImage = highlightImages[tagId].src
	actualImage.src = actualImage.onImage;
	return;
}
//preloadImages(imageIdsToPreload);

function openScreen(url, name, parameters)
{
	var screen = window.open(url, name, parameters);
	screen.focus();

} // openScreen