浏览器最大化时（页面DIV框架）左右排列，非最大化时上下排列要求

function resizeHandle() {
	var doc = window.parent.window.document
		, clientWidth = (doc.documentElement.clientWidth||doc.body.clientWidth)+17
		, div_l = document.querySelector('#dataView > div.shadow.l')
		, div_r = document.querySelector('#dataView > div.r')
	;
	if (clientWidth >= window.screen.width) {
		// window.maximized
		div_l.style.width = '';
		div_r.style.width = '';
	} else {
		// window.unmaximize
		div_l.style.width = '100%';
		div_r.style.width = '100%';
	}
}

window.onresize = resizeHandle;

void function() {
    resizeHandle();
}();