Tuesday, November 8, 2011

Lab 24 Firefox Accessibility Extension


使用FAE來檢視常使用的三個網頁


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Accessibility Extension

List of Accessibility Issues Summary

FAE RuleViolationsMessageClass
Warn The words contained in each h1 element should match a subset of the words contained in the title element. Words (%1) in h1 elements should also be in the title element. Title 
Check Heading content should be concise (usually 65 or fewer characters in length). Headings 
Check Most web pages should contain at least one navigation bar. Menu and Navigation Bars 
Fail Each page must have a lang attribute on its html element whose value or initial subtag is a valid two-character language code. Language Changes 
Warn If the content of the alt attribute is not empty it should contain at least 7 characters and less than 90 characters. The text should provide people who cannot see the image orientation to the content and purpose of the image in the website. Images 
Fail The font and center elements must not be used for text styling, instead use structural markup should be used with CSS for styling. Text Styling 
Warn Every img element that is less than 8 pixels high or 8 pixels wide OR has an empty alt attribute value should be removed and CSS techniques should be used for styling content. Images 
Fail The b element must not be used to bold text content, instead use heading (h1-h6) elements for heading text or the strong element for emphasizing words, phrases or sentences. Text Styling 
Warn Ensure that links that point to different HREFs use different link text. Links 
Warn Avoid using text links that are shorter than four 4 characters in length. Links 
Fail 12 Each img element should have alt text. Images 
Warn 19 Ensure that links that point to the same HREF use the same link text. Links 
Warn 21 Every onmouseover or onmouseout event handler that is not on a focusable element should use CSS :hover psuedo element to provide the stylistic changes. Events 

Date: 11/8/2011 22:46 PM
URL: http://www.eettaiwan.com/
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Accessibility Extension

List of Accessibility Issues Summary

FAE RuleViolationsMessageClass
Warn The words contained in each h1 element should match a subset of the words contained in the title element. Words (%1) in h1 elements should also be in the title element. Title 
Fail Each heading element (h1..h6) must have text content. Headings 
Check Heading content should be concise (usually 65 or fewer characters in length). Headings 
Warn If the content of the alt attribute is not empty it should contain at least 7 characters and less than 90 characters. The text should provide people who cannot see the image orientation to the content and purpose of the image in the website. Images 
Warn Each map, ul or ol element that precedes the last h1 element and appears to be a navigation bar should be immediately preceded by a heading element, preferably an h2. Menu and Navigation Bars 
Warn Every onClick event handler should be on a focusable element. Events 
Warn The content of the headings of the same level within the same section should be unique. Headings 
Fail 10 The i element must not be used to italicize text content, instead use heading (h1-h6) elements for heading text or the em element for emphasizing words, phrases or sentences. Text Styling 
Fail 20 Each img element should have alt text. Images 
Fail 21 Heading elements that follow the last h1 should be properly nested. Headings 
Warn 33 Ensure that links that point to the same HREF use the same link text. Links 
Warn 55 Ensure that links that point to different HREFs use different link text. Links 
Warn 107 Avoid using text links that are shorter than four 4 characters in length. Links 

Date: 11/8/2011 22:47 PM
URL: http://tw.yahoo.com/?p=us
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Accessibility Extension

List of Accessibility Issues Summary

FAE RuleViolationsMessageClass
Fail The page should contain at least one and no more than two h1 elements. Headings 
Fail Heading elements that follow the last h1 should be properly nested. Headings 
Fail Each heading element (h1..h6) must have text content. Headings 
Check Most web pages should contain at least one navigation bar. Menu and Navigation Bars 
Warn The character encoding was not specified. W3C Specifications 
Warn Hidden or empty frames should not be used. Frames 
Fail Every frame element must have a title attribute with content that describes the purpose of the frame. Frames 
Warn 12 Every onmouseover or onmouseout event handler that is not on a focusable element should use CSS :hover psuedo element to provide the stylistic changes. Events 
Fail 13 The b element must not be used to bold text content, instead use heading (h1-h6) elements for heading text or the strong element for emphasizing words, phrases or sentences. Text Styling 
Check 15 The functionality provided by onmousedown, onmouseup and onmousemove event handlers should have keyboard equivalents to perform the same functions that can be achieved with the mouse actions. Events 
Fail 16 Each img element should have alt text. Images 
Warn 20 Ensure that links that point to different HREFs use different link text. Links 
Warn 27 Avoid using text links that are shorter than four 4 characters in length. Links 
Warn 64 Every onClick event handler should be on a focusable element. Events 
Warn 94 Every img element that is less than 8 pixels high or 8 pixels wide OR has an empty alt attribute value should be removed and CSS techniques should be used for styling content. Images 
Warn 140 If the content of the alt attribute is not empty it should contain at least 7 characters and less than 90 characters. The text should provide people who cannot see the image orientation to the content and purpose of the image in the website. Images 
Warn 211 Ensure that links that point to the same HREF use the same link text. Links 
Fail 273 Each page must have a lang attribute on its html element whose value or initial subtag is a valid two-character language code. Language Changes 

Date: 11/8/2011 22:48 PM
URL: http://www.youtube.com/
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