Calling Javascript on page load

[mellomel70]

Hi - I have an ASP.Net 2.5 application and I need to call a javascript function when one of the pages loads initially. I've tried:

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string ScriptToCall = @"EnableCheckboxes(" + cblDetails.ClientID + ", false);";
ClientScript.RegisterStartupScript(this.GetType(), "addScript", ScriptToCall, true);

where EnableCheckboxes is a javascript function on the page. This doesn't work (doesn't disable the CheckBoxList), although the EnableCheckboxes function DOES work when I call it in other ways, so I'm sure that the problem is that I'm not calling it properly on page load.

I've tried:

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ClientScript.RegisterStartupScript(this.GetType(), "addScript", "alert('Hello');", true);

which DOES work, so I know I'm on the right track, but how do I do this?

Thanks!