DOM - remove text question

[Rob Hunter]

I have a div tag with an id of mainBlock. How can I remove everything inside the DIV tag using DOM and javascript? Thanks.

Rob

[Bear Bibeault]

document.getElementById('mainBlock').innerHTML = "";

[Bear Bibeault]

or....

Iterate through all the children removing each from the parent.

The former is easier and liklely quicker.

[Rob Hunter]

Hi Bear,
Thanks that worked fine. I thought for sure I had tried that though earlier and then (after thinking it failed) started trying other things. Anyways thanks again.

Rob

[Eric Pascarello]

DOM way

function removeChildren(elem){
  while (elem.hasChildNodes()){
    elem.removeChild(elem.firstChild);
  }
}

Eric

[Rob Hunter]

That div tag I was talking about. Sometimes it may or may not be on the page what is the easiest/best way to determine it's on the page or not? Thanks.

Rob

[Rob Hunter]

Sorry guys. I had a typo in the if statement.

Rob

[Eric Pascarello]

Basic object detection

if(document.getElementById("foo"))alert("here");

Eric