Hi, thx a lot for your help.
@Colin "doesn't work" means it returns NULL ;) But of course, you are right. I already feared that the "A string is not a document/DOM" is the main problem. @T.J. Crowder thx! I'll try this soon, it looks promising :) I already created a regEx solution but it's too unflexible for my needs (handle "div","li',"span",...alt...title tags..maybe additional style info and so on.... makes the regEx quite hard ..) On 15 Jun., 13:41, "T.J. Crowder" <t...@crowdersoftware.com> wrote: > Hi, > > As Colin points out, you're trying to treat a String object like a > Document (by calling getElementById), which isn't going to work. > > You have a couple of options. > > 1. Use string parsing to isolate the markup in that string for the > element you want. Once you have just that markup, you can use that > with the #update call. This could be fairly challenging to do in the > general case (or maybe you have massive Regex fu), but perhaps in your > specific case it might be simpler. > > 2. Alternately, use a document fragment[1][2]. This is to a large > extent what document fragments are for -- holding copies of things and > mucking about with them off-to-the-side. I was surprised not to have > an example lying around and wanted to refresh my memory, so here's a > small example: > > http://pastie.org/512428 > > (Supply your own 'fragment2.html'; it can be any valid HTML doc, make > sure it has an element with the ID 'two' in it -- or change the ID > used in the example.) > > Basically, I request the page via Ajax.Request, then create a fragment > to hold the result and (because I'm lazy) a div inside that fragment > so that I can use Prototype's Element#update function. I put the > retrieved document inside the div (almost certainly creating a > completely invalid document temporarily!), then go find the element > inside that with the ID I want, and update a target div with that > element. > > Note this line: > > elm = findElementByID(div, 'two'); > > I coded up a quick recursive-descent lookup function for finding the > element by ID because you can't use document.getElementById (or > Prototype's $) to find it in the fragment -- the fragment isn't in the > document (which is probably a good thing, otherwise you'd be massively > worried about ID conflicts loading up an entire page like this). > Interestingly, if you're using Prototype 1.6.1 RC2, you could (as of > the time of this writing) use: > > elm = div.select('#two'); > > ...instead, because apparently Prototype's new Sizzle-based selector > engine finds the element correctly, wheras in 1.6.0.3 the old selector > engine doesn't. But I wouldn't. Firstly, the simple recursive- > descent function is small and doesn't take long; secondly, I wouldn't > bet on future changes not causing Element#select to stop working in > this context -- barring finding documentation saying that it will, of > course. I don't know Sizzle well enough to know if it intentionally > handles this situation. > > [1]https://developer.mozilla.org/en/dom/documentfragment > [2]http://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-B63ED1A3 > > HTH, > -- > T.J. Crowder > tj / crowder software / com > Independent Software Engineer, consulting services available > > On Jun 13, 10:04 pm, fufolewe <rentsch.dan...@gmail.com> wrote: > > > Hi, > > > I have a simple problem which is driving me nuts: > > > I would like to make an AJAX req which returns the whole page - select > > an element by its ID from the response text and update "targetDiv" > > with this element (myDivID). > > > But it doenst work :/ > > > function loadContent(url) { > > > new Ajax.Request(url, { > > method: 'get', > > onSuccess: function(transport) { > > > var response = transport.responseText; > > > var element = response.getElementById( 'myDivID'); > > > $('targetDiv').update(element); > > > } > > }); > > > } > > > Some ideas? > > > thx --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Prototype & script.aculo.us" group. To post to this group, send email to prototype-scriptaculous@googlegroups.com To unsubscribe from this group, send email to prototype-scriptaculous+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/prototype-scriptaculous?hl=en -~----------~----~----~----~------~----~------~--~---
