[OpenLayers-Users] General Question to understand OL-code more "from the base on"

[Alexandre Dube]

Hi Kai,

  What loadURL does is an AJAX request so the object your setHTML 
function receive is an AJAX response and responseText is one of its 
properties.

  You can learn more at : http://www.w3schools.com/dom/dom_http.asp

  Learn more with one of the best javascript teacher : firebug.  If 
you're not using it, I suggest you to do so.

  Hope this helps,

Alexandre


Kai Behncke wrote:
> Dear list,
>
> I have got a question to understand better OpenLayers-code.
>
> Let`s take  "getFeatureInfo.html" (of the examples) 
>
> For example it`s written:
>
>
>  OpenLayers.loadURL(url, '', this, setHTML);
>     function setHTML(response) {
>         OpenLayers.Util.getElement('nodeList').innerHTML = response.responseText;
>     }
>
> it works well, but to understand that code "more from the base on"  I tried to use the Developer Documentation.
>
> The loadURL-function is well explained, but if  look for the "response"-Value in the function "setHTML"
> I don`t seem to find the right thing.
>
> I mean: Where/How can I find out that the parameter "response.responseText" exists (and what it exactly means)?
>
> Might it be that some parameters are not documented or have I overseen anything?
>
>
> Thank you very much, Kai
>   


-- 
Alexandre Dubé
Mapgears
www.mapgears.com