backArrow = new Image();
backArrow.src = "images/bt_back.gif";
backArrowOver = new Image();
backArrowOver.src = "images/bt_back-rollover.gif";

nextArrow = new Image();
nextArrow.src = "images/bt_next.gif";
nextArrowOver = new Image();
nextArrowOver.src = "images/bt_next-rollover.gif";

function changeBackArrow(picObject) {
	window.document.images["back"].src = picObject.src;
}

function changeNextArrow(picObject) {
	window.document.images["next"].src = picObject.src;
}

function changeBack2Arrow(picObject) {
	window.document.images["back2"].src = picObject.src;
}

function changeNext2Arrow(picObject) {
	window.document.images["next2"].src = picObject.src;
}

function showMenu(menu)
{
	menuLayer_1 = document.getElementById('sub-portfolio');
	menuLayer_2 = document.getElementById('sub-pub');
	menuLayer_3 = document.getElementById('sub-unternehmen');
	menuLayer=document.getElementById(menu);
	if (menuLayer == menuLayer_1) {
		menuLayer_2.style.display = "none";
		menuLayer_3.style.display = "none";
	} else if (menuLayer == menuLayer_2) {
		menuLayer_1.style.display = "none";
		menuLayer_3.style.display = "none";
	} else {
		menuLayer_1.style.display = "none";
		menuLayer_2.style.display = "none";
	}
	menuLayer.style.display="block";
}

function hideMenu()
{
	menuLayer_1 = document.getElementById('sub-portfolio');
	menuLayer_2 = document.getElementById('sub-pub');
	menuLayer_3 = document.getElementById('sub-unternehmen');
	menuLayer_1.style.display = "none";
	menuLayer_2.style.display = "none";
	menuLayer_3.style.display = "none";
}

function OpenWindow (Adresse) {
  newwin = window.open(Adresse, "intangesInterviewer", "scrollbars=yes,left=0,top=0");
  newwin.resizeTo(screen.availWidth, screen.availHeight);
  newwin.focus();
}