IE6 Bug?

@phpnoviceJun 10.2006 — #Maybe -- maybe not. It appears to at least be a difference in how the browser interprets "scope". In all browsers, a form has its own scope -- separate from both the document scope and the window scope. However, IE apparently treats the form scope more strictly than other browsers, in that, variables declared without the [b]var[/b] operator (but within the form scope) are considered local variables -- not global. You can work around this by calling a function in the HEAD from your in-line form button event -- rather than setting the variable directly in the in-line form button event handler. You can also work around this problem by explicitly setting the variable as a property of the [B]window[/B] object -- where all true global variables are defined.

I set up the following test example which all result in the creation of a true global variable:

[code=html]<html>
 <head>
 <title>test</title>
 <script>
 function setvar() {
 variablename = 'abc';
 return true;
 }
 </script>
 </head>
 
 <body>
 <form><p><input type="button" value="set in form scope" onclick="window.variablename='abc'"></p>
 <p><input type="button" value="set in window scope" onclick="setvar()"></p></form>
 <p><button onclick="variablename = 'abc'">set in document scope</button></p>
 <p><button onclick="alert(typeof(variablename))">verify in window scope</button></p>
 </body>
 </html>[/code]

IE6 Bug?

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