github地址：https://github.com/MeichaoWen/JSInstance

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	window.onload = function () {
		var oDiv = document.getElementById('playimages');
		var oDivPrev = getByClass(oDiv, 'prev')[0]
		var oDivNext = getByClass(oDiv, 'next')[0]
		var oDivMrak_left = getByClass(oDiv, 'mark_left')[0]
		var oDivMark_right = getByClass(oDiv, 'mark_right')[0]
		var oSmall = getByClass(oDiv, 'small_pic')[0]
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				tab()
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					startMove(this, 'opacity', 60)
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			startMove(aLiBig[now], 'height', 320)
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		oDiv.onmouseover = function () {
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