[Javascript] window.onload questions

[Schalk Neethling]

Thanks for the info Paul, I will definitely consider it.

Paul Novitski wrote:
> At 06:02 AM 12/6/2005, Schalk wrote:
>> I have two seperate .js file that I load into a html page. Both of 
>> them load their init() function with the window.onload function. From 
>> what I can see it seems that the second script is overriding the 
>> first script and the first one is never run and therefore does not 
>> function.
>>
>> First, can I call the onload functions of both in the second script, 
>> even though they are in seperate files? If not, is it best then to 
>> merge the two into one file or do I have another option? Thanks for 
>> all of your input.
>
> Hi Shalk,
>
> Here's a bit of script I include with each function that I want to run 
> on pageload:
> ___________________________
>
> // here's the onload manager:
>
> var loadDoSomething = window.onload;
>
> window.onload = function()
> {
>                 if (loadDoSomething) loadDoSomething();
>         doSomething();
> }
>
>
> ...
>
>
> // here's the function I want to run:
>
> function doSomething()
> {
>         ...
> }
> ___________________________
>
> where "doSomething" is the name of the function you want to run and 
> "loadDoSomething" is a variable name that's unique for each loaded 
> function.
>
> As you can see, this is a close cousin to the script by Simon 
> Willison.  The advantage of his script is that, once the master script 
> is loaded, you use a one-line function call to add more functions to 
> the onload chain.  The disadvantage of his script is that you need to 
> manually manage the organization of linked scripts, ensuring that the 
> master script is loaded once & only once in order for the system to work.
>
> The advantage of my method is that each linked script handles its own 
> addition to the onload chain itself, not requiring a master script.  
> The disadvantage is that you need to change the name of the load 
> variable ("loadDoSomething" in my example above) to something unique 
> for each instance.
>
> I prefer my method only because I want the scripts I link in to be 
> self-managing.  The whole reason I went in this direction in the first 
> place was so I wouldn't have to babysit scripts, worrying about which 
> ones were loaded and in what order.
>
> Regards,
> Paul 
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>
>

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