CD-455Appendix F . Examples from Parts III and IV alt NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5 Compatibility Example Use The Evaluator (Chapter 13) to assign a string to the alt property of the document.myIMG image on the page. First, assign a nonexistent image to the src property to remove the existing image: document.myIMG.src = fred.gif Scroll down to the image, and you can see a space for the image. Now, assign a string to the alt property: document.myIMG.src = Fred s face The extra backslash is required to escape the apostrophe inside the string. Scroll down to see the new alttext in the image space. border NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5 Compatibility Example Feel free to experiment with the document.myIMG.border property for the image in The Evaluator (Chapter 13) by assigning different integer values to the property. complete NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5 Compatibility IMG.complete
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CD-454 Part VI . Appendixes Example Listing 22-1 enables you to choose from the different alignproperty values as they influence the layout of an image whose HTML is embedded inline with some other text. Resize the window to see different perspectives on word-wrapping on a page and their effects on the alignment choices. Not all browsers provide distinctive alignments for each choice, so experiment in multiple supported browsers. Listing 22-1: Testing an Image s align Property

IMG align Property

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Choose the image alignment: absbottom absmiddle baseline bottom left middle right texttop top

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IMG.align
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CD-453Appendix F . Examples from Parts III and IV }

TextRectangle Object

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Click on any of the four colored elements in the paragraph below and watch the highlight rectangle adjust itself to the element s TextRectangle object.

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Chapter 22 Examples The following sections contain examples from Chapter 22, Image, Area, and Map Objects. Image and IMG Element Objects Properties align NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5 Compatibility IMG.align
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CD-452 Part VI . Appendixes An important part of the listing is the way the action of sizing and showing the positioned element is broken out as a separate function (setHiliter()) from the one that is the onClickevent handler function (handleClick()). This is done so that the onResize event handler can trigger a script that gets the current rectangle for the last element clicked, and the positioned element can be sized and moved to maintain the highlight of the same text. As an experiment, try removing the onResize event handler from the tag and watch what happens to the highlighted rectangle after you resize the browser window: the rectangle that represents the TextRectangleremains unchanged and loses track of the abstract TextRectangle associated with the actual element object. Listing 19-12: Using the TextRectangle Object Properties