레이어 중앙 위치

##### [source : https://jsfiddle.net/softm/5fdqa0ho/](https://jsfiddle.net/softm/5fdqa0ho/) ##### # init ```javascript function init() { var obj = document.all['test']; var w = parseFloat(obj.style.width); var h = parseFloat(obj.style.height); //alert (w + ' / ' + h ); //alert ( document.body.scrollTop ); var aw = parseFloat(document.body.clientWidth); var ah = parseFloat(document.body.clientHeight); //alert (aw + ' / ' + ah ); var t = (ah - h) / 2; var l = (aw - w) / 2; //alert (t + ' / ' + l); obj.style.top = t + parseFloat(document.body.scrollTop); obj.style.left = l + parseFloat(document.body.scrollLeft); //alert (obj.style.top + ' / ' + obj.style.left); } window.attachEvent('onload',init); window.attachEvent('onresize',init); ``` ##### # html ```html

중앙

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