forked from mirror/_s
32 lines
1.1 KiB
JavaScript
32 lines
1.1 KiB
JavaScript
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/**
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* navigation.js
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*
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* Handles toggling the navigation menu for small screens.
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*/
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( function() {
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var button = document.getElementById( 'site-navigation' ).getElementsByTagName( 'h1' )[0],
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menu = document.getElementById( 'site-navigation' ).getElementsByTagName( 'ul' )[0];
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container = document.getElementById( 'site-navigation' );
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if ( undefined == button || undefined == menu )
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return false;
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button.onclick = function() {
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if ( -1 == menu.className.indexOf( 'nav-menu' ) )
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menu.className = 'nav-menu';
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if ( -1 != button.className.indexOf( 'toggled-on' ) ) {
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button.className = button.className.replace( ' toggled-on', '' );
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menu.className = menu.className.replace( ' toggled-on', '' );
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container.className = container.className.replace( ' main-small-navigation', ' main-navigation' );
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} else {
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button.className += ' toggled-on';
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menu.className += ' toggled-on';
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container.className = container.className.replace( ' main-navigation', ' main-small-navigation' );
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}
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};
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// Hide menu toggle button if menu is empty.
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if ( ! menu.childNodes.length )
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button.style.display = 'none';
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} )();
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