// Navigation LM Consulting
img1 = "art/pf_navi.gif";
img2 = "art/pix_navi.gif";
img3 = "../art/pf_navi.gif";
img4 = "../art/pix_navi.gif";
function imgover(imgname){
	imgname.src = img1;
}
function imgout(imgname){
     imgname.src = img2;
}

function imgover_archive(imgname){
	imgname.src = img3;
}
function imgout_archive(imgname){
     imgname.src = img4;
}

// browsercheck
var ns4 = 0;
var ie4 = 0;
var w3c = 0;
var dhtml	= 0;

if (document.getElementById){
		w3c = 1;
		layerRef="document.getElementById";
		dhtml = 1;
} 
else if (document.layers) {
        ns4 = 1;
        layerRef="document.layers.";
        dhtml = 1;
}
else if (document.all) {
        ie4 = 1;
	    layerRef="document.all.";	
        dhtml = 1;
}

//Menu Vars
var HeadMenuDelay = -1;
var openHeadMenu = 0;
var Delay = 2000;


function handleHeadMenu(nr,direction) {
	if(direction) {
		if(HeadMenuDelay != -1) {
			clearTimeout(HeadMenuDelay);
			HeadMenuDelay = -1;
		}
		if(openHeadMenu != nr) {
			showHeadMenu(nr);
		}
	} else {
		HeadMenuDelay = setTimeout("closeHeadMenu("+nr+")",Delay);
	}
	return true;
}

function closeHeadMenu(nr) {
	clearTimeout(HeadMenuDelay);
	HeadMenuDelay = -1;
	if(nr > 0) {
		if (ns4 && document.layers[nr]) {
			document.layers[nr].visibility = "hide"
		} else if (w3c && document.getElementById(nr) && document.getElementById(nr).style) {
			document.getElementById(nr).style.visibility = "hidden";
			//document.getElementById(8).style.visibility = "visible";
		} else if (ie4 && document.all[nr] && document.all[nr].style) {
			document.all[nr].style.visibility = "hidden";
			//document.all[8].style.visibility = "visible";
		}
	}
	if (nr == 5){
		document.getElementById(8).style.visibility = "visible";
	}	
	if (nr == 6){
		document.getElementById(8).style.visibility = "hidden";
	}	
	if (nr == 7){
		document.getElementById(8).style.visibility = "hidden";
	}	
	openHeadMenu = 0;
	return 1;
}

function showHeadMenu(nr) {
	if(openHeadMenu > 0) {
		closeHeadMenu(openHeadMenu);
	}
	if(nr > 0) {
		if (ns4 && document.layers[nr]) {
			document.layers[nr].visibility = "show"
		} else if (w3c && document.getElementById(nr) && document.getElementById(nr).style) {
			document.getElementById(nr).style.visibility = "visible";
			//document.getElementById(8).style.visibility = "hidden";
		} else if (ie4 && document.all[nr] && document.all[nr].style) {
			document.all[nr].style.visibility = "visible";
			//document.all[8].style.visibility = "hidden";
		}
	}
	if (nr == 5){
		document.getElementById(8).style.visibility = "hidden";
	}	
	if (nr == 6){
		document.getElementById(8).style.visibility = "hidden";
	}	
	if (nr == 7){
		document.getElementById(8).style.visibility = "hidden";
	}	
	openHeadMenu = nr;
	return 1;
}

//NS4 Event-Functions
function callShowHandler() { handleHeadMenu(openHeadMenu,1); }
function callHideHandler() { handleHeadMenu(openHeadMenu,0); }