function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {

		mails = newImage("images/mail06_on.gif");
		akt = newImage("images/m_akt_on.gif");
		por = newImage("images/m_por_on.gif");
		pos = newImage("images/m_pos_on.gif");
		org = newImage("images/m_org_on.gif");
		fgr = newImage("images/m_fgr_on.gif");
		mit = newImage("images/m_mit_on.gif");
		ges = newImage("images/m_ges_on.gif");
		ver = newImage("images/m_ver_on.gif");
		die = newImage("images/m_die_on.gif");
		med = newImage("images/m_med_on.gif");
		reg = newImage("images/m_reg_on.gif");
		dok = newImage("images/m_dok_on.gif");
		lin = newImage("images/m_lin_on.gif");
		hom = newImage("images/m_hom_on.gif");
		arc = newImage("images/m_arc_on.gif");
		prj = newImage("images/m_prj_on.gif");
		ste = newImage("images/m_ste_on.gif");
		log = newImage("images/m_log_on.gif");
		wei = newImage("images/m_wei_on.gif");
		weiter = newImage("images/weiterbildung_on.gif");

		preloadFlag = true;
	}
}


/* scripts and code for navigation - Copyright (C) 2003 Greg Samson - mypants.com */

function setVisibility(objectID,state) {
	dom = findDOM(objectID,1);
	dom.visibility = state;
}

function toggleVisibility(objectID) {
	var dom = findDOM(objectID,1);
	state = dom.visibility;
	if (state == 'hidden' || state == 'hide' ) { dom.visibility = 'visible'; }
	else {
		if (state == 'visible' || state == 'show') { dom.visibility = 'hidden'; }
		else { dom.visibility = 'visible'; }
		}	
}

function makeVisible(objectID) {
	var dom = findDOM(objectID,1);
	dom.visibility = 'visible';
}

function makeHidden(objectID) {
	var dom = findDOM(objectID,1);
	dom.visibility = 'hidden';
}