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[RESOLVED] ajax remote call question

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May 15.2008

I have a simple ajax RPC to execute requests on an external php script.

My question is:

My goal is to have a div pop up ONLY if a condition is true. if a condition is false, I don’t want anything to happen.

I know how to do this in several languages, but my ajax learning curve isn’t at the top of the hill yet.

can someone point me to a good tutorial for this and/or give me an example to look at?

Thanks.

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5 Comments(s) ↴

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@jeremuMay 15.2008 — If you know the basic syntax of AJAX you can just put a popup function in the on ready state = 4.

Let me know if you need more help.

If you had some source code it would help.
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@jamied66authorMay 15.2008 — I'm getting more comfortable with the syntax, to be sure.

here's my function to handle responses from the external file (painfully simple)

[CODE]
function handleResponse() {
if(http.readyState == 4){
document.getElementById("cu_info").innerHTML = http.responseText;
}
}
[/CODE]

my question is, how do i get nothing to happen if the query i'm executing returns no results. http.readyState will still = 4. I'm guessing I'll have to tell the external script to do something, I'm just at a loss for what.
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@jeremuMay 15.2008 — [CODE]
function handleResponse() {
if(http.readyState == 4){
document.getElementById("cu_info").innerHTML = http.responseText;

if(http.responseText != '' )
//do something
}
}
[/CODE]
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@jamied66authorMay 15.2008 — haha.

i thought to myself

"it can't be that simple..." before posting this. Thanks a lot!
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@jeremuMay 15.2008 — hehe.

AJAX will do that to you.

I'm glad I could help.

Just watch out for those pop-up blockers.
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