function menue_on(str_divid) {
	document.getElementById(str_divid).style.backgroundColor = '#bc7e15';
	document.getElementById(str_divid + '_text').style.color = '#ffffff';
}

function menue_off(str_divid) {
	document.getElementById(str_divid).style.backgroundColor = '#dfded4';
	document.getElementById(str_divid + '_text').style.color = '#7e7e7e';
}

function menue_goto(str_url) {
	window.location = str_url;
}

function onbut(int_button) {
	for(i = 1; i < 7; i++) {
		document.getElementById('but' + i).src = 'img/but_' + i + '_grey.gif';
	}
	document.getElementById('but' + int_button).src = 'img/but_' + int_button + '.gif';
}