898 Part III . Document Objects Reference Listing 31-22 (continued) offsetY += document.body.scrollTop } } return false } } } function release(evt) { evt = (evt) ? evt : (window.event) ? window.event : var targElem = (evt.target) ? evt.target : evt.srcElement if (targElem.className == draggable ) { while (targElem.id != myLayer && targElem.parentNode) { targElem = targElem.parentNode } if (engaged && targElem.id == myLayer ) { engaged = false } } }

Resizing a Layer (W3C)

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This chapter only scratches the surface in the kinds of positioned element actions you can control via scripts. You may have seen examples of positioned element scripting at sites around the Web. For example, some pages have subject headers fly into place even bounce around until they settle into position. Or elements can go in circles or spirals to get your attention (or distract you, as the case may be). The authors of those tricks apply formulas from other disciplines (such as games programming) to the styleobject properties of a positioned element.
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