Finding a layer's width when the CSS is not set

[pronerd]

Does anyone know a trick to get the width of a layer when its CSS width attribute is not set? The code below will return a value of null since the CSS attributes are not set. Does anyone know of a way to get the layer's width in this case?

<div id="someLayer" ></div>

<script>
    alert('Width: 'document.getElementById('someLayer').style.width):
</script>

[Dormilich]

It should inherit the width of the nearest ancestor element, where this property is defined. if there's no width defined, it will take window width minus margins, paddings, borders and offsets.

[acoder]

Perhaps this is what you're looking for.