@ Balazs Endresz: You're right, and Ricardobeat has given the good answer ;) Even if i'm working with Firebug I didn't notice this behavior between value and text.
@Remy: yeah! I couldn't manage to put xml in jsbin. I followed the ajax video without no success. Any view where i pasted the xml (JS or HTML views) it was outputted without tags. The only manner i found was to paste html encoded caracters in the html view. So that the output was fine (at screen) ( I do paste that in html view: <xml> <set id="textfield">value for test 1</set> </ xml> ) Is there a simple way to use xml at jsbin ? like you do with json in the ajax video ? Thanx for the jsbin app, it kills all !!!!! @ Ricardo: val() is working fine in this case, thanx. Nice analysis of the FF behavior with textarea text/value attributes ;) what i didn't mention is that the element to be updated could be any element in the page (textarea, div or p ... ) The first code I wrote in dev was including a test case for the element tagname before to update it, and i was right then! (But when i saw that text() was working with textarea too (mainly in IE), i deleted this test case using text() for updating any element content). Here's the test case I was using : var viewer = $("[id='" + update[0] + "']"); var viewertag = viewer.attr("tagName").toLowerCase() if (viewertag == "textarea" || viewertag == "input") { viewer.val( update[1] );//input detected } else { viewer.text( update[1] );//other than inputs } Would there be a method to update any element without any test case ? Thank you all for you help. I now understand better why it does not always work in FF (IE and SAFARI 3(win32) where working fine with the code) !