function _cursor(objekt){
	if(navigator.appVersion.substring(22,23) == "5"){
		objekt.style.cursor='hand';
	}else{
		objekt.style.cursor='pointer';
	}
}
function _visible(id){
	document.getElementById(id).style.visibility = "visible";
}
function _hidden(id){
	document.getElementById(id).style.visibility = "hidden";
}
function _bgcolor(objekt,modus){
	if (modus == 'over'){
		farbe = '#c3c3c3';
	}else{
		farbe = '#d1d1d1';
	}
	objekt.style.background=farbe;
}