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noah on 07/20/07


Tagged

css cool DOM safari theme flanagan broken stylesheets learning


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Create new CSS Selector (FF, IE, Opera)

Published in: JavaScript 

Construct and add a selector to an existing stylesheet. Does not work in Safari.

Plain TextExpand 
  1. //see Flanagan 5th ed. 16.6
  2.     var menuId = 'foo';
  3.     var selector = '#'+ menuId + ' li ul';
  4.     //assume we have at least one stylesheet
  5.     if ( document.styleSheets[0].insertRule) {
  6.       //if not IE
  7.        var lastrule = document.styleSheets[0].cssRules.length;
  8.       document.styleSheets[0].insertRule(selector + '{display:none}', lastrule);  
  9.     } else if ( document.styleSheets[0].addRule ) {
  10.       //if IE
  11.       var lastrule = document.styleSheets[0].rules.length;
  12.       document.styleSheets[0].addRule(selector, 'display:none', lastrule);
  13.     }

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