ActionScript for Flash MX: The Definitive Guide, Second Edition

This is the Title of the Book, eMatter Edition

Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved.

Calling ActionScript Functions from HTML Links

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In ActionScript, we can also execute JavaScript statements from an <A> tag, like this:

theField_txt.htmlText = "<A HREF='javascript:alert(5);'>display the number 5</A>";

However, to include string values in JavaScript statements, we must use the HTML

entity

&quot; for quotation marks, as in:

theField_txt.htmlText = "<A HREF=

'javascript:alert(&quot;hello world&quot;);'>"

+ "display hello world</A>";

Calling ActionScript Functions

from HTML Links

Though arbitrary statements of ActionScript code cannot be executed from a Flash

<A> tag, ActionScript functions can. To invoke an ActionScript function from an

anchor tag, we use the following syntax:

<A HREF="asfunction:myFunctionName">invoke the function</A>

The function invocation operator () is not allowed and should not be used when

invoking an ActionScript function from an anchor tag. The function name must

immediately follow the keyword

asfunction:—if a space character occurs before the

function name, the function will not execute.

In addition to calling an ActionScript function from an anchor tag, we can also pass

one parameter to that function using the syntax:

<A HREF="asfunction:myFunctionName,myParameter">invoke the function</A>

where myParameter is the value of the parameter to pass. ...