try {
  document.execCommand("BackgroundImageCache", false, true);
} catch(err) {}
function wsChange(num) {
	$('ws1').className = 'ws1 inactive';
	$('ws2').className = 'ws2 inactive';
	$('ws3').className = 'ws3 inactive';
	$('ws4').className = 'ws4 inactive';
	$('ws' + num).className = 'ws' + num + ' active';
}
function wnChange(num) {
	$('wn1').className = 'wn1 inactive';
	$('wn2').className = 'wn2 inactive';
	$('wn3').className = 'wn3 inactive';
	$('wn' + num).className = 'wn' + num + ' active';
}
function wnnChange(num) {
	$('wnn1').className = 'wnn1 inactive';
	$('wnn2').className = 'wnn2 inactive';
	$('wnn3').className = 'wnn3 inactive';
	$('wnn' + num).className = 'wnn' + num + ' active';
}

function wyszukajChange(num) {
	$('wl1').className = 'wl1';
	$('wl2').className = 'wl2';
	$('wl3').className = 'wl3';
	$('wl4').className = 'wl4';
	$('wl' + num).className = 'wl' + num + ' active';
}

function wwChange(num) {
	$('ww1').className = 'ww1 inactive';
	$('ww2').className = 'ww2 inactive';
	$('ww' + num).className = 'ww' + num + ' active';
}

function agChange(num) {
	$('ag1').className = 'ag1 inactive';
	$('ag2').className = 'ag2 inactive';
	$('ag' + num).className = 'ag' + num + ' active';
}

function wlChange(num) {
	$('wl1').className = 'inactive wl1';
	$('wl2').className = 'inactive wl2';
	$('wl3').className = 'inactive wl3';
	$('wl4').className = 'inactive wl4';
	$('wl' + num).className = 'wl' + num + ' active';
}
function wpChange(num) {
	$('wp1').className = 'wp1 inactive';
	$('wp2').className = 'wp2 inactive';
	$('wp3').className = 'wp3 inactive';
	$('wp' + num).className = 'wp' + num + ' active';
}

function wpsmallChange(num) {
	$('wp1').className = 'wp1_small  inactive';
	$('wp2').className = 'wp2_small inactive';
	$('wp3').className = 'wp3_small inactive';
	$('wp' + num).className = 'wp' + num + '_small active';
}



function woChange(num) {
	$('wo1').className = 'wo1 inactive';
	$('wo2').className = 'wo2 inactive';
	$('wo3').className = 'wo3 inactive';
	$('wo' + num).className = 'wo' + num + ' active';
}

function wn_login_Change(num) {
	$('wn_login_1').className = 'wn_login_1 inactive';
	$('wn_login_2').className = 'wn_login_2 inactive';
	$('wn_login_3').className = 'wn_login_3 inactive';
	$('wn_login_' + num).className = 'wn_login_' + num + ' active';
}