Error traping on Javascript call

[neofactor]

Is it possible in Javascript to check is a file exists first.. then load the .js file.. if not... show an alternate message like : Content not available at this time.... or Server down.. ect.


so if the server you are calling the javascript include happens to go offline... people do not see the error:

<script language=&quot;JavaScript&quot; src=&quot;

http://unstableserver.com/javascriptfile.js&quot;></script>

Perhaps I could wrap the function with an If statement and say onError... had trouble.

What would I say to check it though?


Thanks for any help!

David David McIntosh

http://www.neofactor.com

Have a nice day!

 

[jemminger]

sure!

supposing you have a function &quot;foo();&quot; in your js include

<script language=&quot;JavaScript&quot; src=&quot;[URL unfurl="true"]http://unstableserver.com/javascriptfile.js&quot;></script>[/URL]

you could use this after the include statement:
[tt]
try {
foo();
}
catch(e) {
alert(&quot;Error&quot;
}
[/tt]
if all is well, foo() will be called, else the alert() will be shown.


=========================================================
if (!succeed) try();
-jeff