function changeDisplay(div_id,if_,then_) {
	var elem=document.getElementById(div_id);
	if (elem && elem.style.display == if_) {elem.style.display = then_;}
}

function open_sub(SM_SHORT) {

	if (akt_sub != SM_SHORT) {
		 changeDisplay(akt_sub,'block','none');
		 changeDisplay(SM_SHORT,'none','block');

		 akt_sub=SM_SHORT;			   
	}
}

function changePic(obj2, over) {
	var obj = obj2.getElementsByTagName('IMG')[0];
	var tmp_sub = 'FOLDER_' + akt_sub;
	if (obj && (obj2.id != tmp_sub)) {
		file = obj.src;
		tmp_img= new Image();
		if (over) {
			tmp_img.src = file.replace(/2*\.gif/, '2.gif');
		} else {
			tmp_img.src = file.replace(/2+\.gif/, '.gif');
		}
		obj.src = tmp_img.src;
	}
}

function getAdr(prefix,postfix,lnkparam,lnktxt) {
	lnktxt = lnktxt.replace(/TMPL_MAIL/,prefix+'@'+postfix);
	document.write('<a '+lnkparam+' href="mailto:'+prefix+'@'+postfix+'">'+lnktxt);
}