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check the checkbox status when page loads up

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Oct 31.2007

Hey gang

In my “create new item” form, i have a checkbox that if it is checked, a textarea willl be pop up for me to type something. if I go to “update item” form, i want that checkbox to be checked and also the textarea to be shown with what I typed when I created the item.

I guess my question is how to call a textareaPop() javascript function if the checkbox is checked at page load.

Thanks in advance

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JavaScript

4 Comments(s) ↴

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@mdjoOct 31.2007 — 
In my "create new item" form, i have a checkbox that if it is checked, a textarea willl be pop up for me to type something. if I go to "update item" form, i want that checkbox to be checked and also the textarea to be shown with what I typed when I created the item.

I guess my question is how to call a textareaPop() javascript function if the checkbox is checked at page load.
[/QUOTE]

My first question would be what you're doing to get the checkbox checked on the return. I presume you're using PHP or ASP or JSP or something. Why not just use the same flag to turn on the textbox? Life if you're writing:

<i>
</i>&lt;input type=checkbox name=fooCheck &lt;%= boxWasChecked?" checked":""%&gt;&gt;


then later just write
<i>
</i>if (boxWasChecked)
{
%&gt;
&lt;textarea name=fooText&gt;&lt;%= fooText%&gt;&lt;/textarea&gt;
&lt;%
}


But if you really need to test this with Javascript for some reason, the simple answer is, use

<i>
</i>if (document.getElementById("fooCheck").checked)
textAreaPop();
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@jj0914authorOct 31.2007 — Thank you for replying.

I guess I wasn't clear on my question, what I want is when I load the page, I need to call the JS function, but since I already used <body onload=""> to call other JS function, so I am not sure how I can call this textarePop() function at page load
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@mdjoOct 31.2007 — Oh, sorry, I completely misunderstood what you were asking. You just want to know how to have two functions run at <body onload> time? Easy.

Suppose the two functions are called "stuff" and "moreStuff".

Option 1:
<i>
</i>&lt;body onload="stuff();moreStuff();"&gt;


Option 2:
<i>
</i>&lt;script&gt;
function allStuff()
{
stuff();
moreStuff();
}
...
&lt;body onload="allStuff()"&gt;
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@jj0914authorOct 31.2007 — Thanks a lot buddy, that's exactly what I want to know. : )
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