jQuery获得页面元素的绝对/相对位置即绝对X,Y坐标
获取页面某一元素的绝对x,y坐标，可以用offset()方法：
. 代码如下:
<span style="color:#000066; font-weight:bold">var</span> x <span style="color:#339933">=</span> $<span style="color:#009900">(</span><span style="color:#3366cc">'#divid'</span><span style="color:#009900">)</span>.<span style="color:#660066">offset</span><span style="color:#009900">(</span><span style="color:#009900">)</span>.<span style="color:#660066">top</span><span style="color:#339933">;</span>
<span style="color:#000066; font-weight:bold">var</span> y <span style="color:#339933">=</span> $<span style="color:#009900">(</span><span style="color:#3366cc">'#divid'</span><span style="color:#009900">)</span>.<span style="color:#660066">offset</span><span style="color:#009900">(</span><span style="color:#009900">)</span>.<span style="color:#660066">left</span><span style="color:#339933">;</span>
获取相对(父元素)位置:
. 代码如下:
<span style="color:#000066; font-weight:bold">var</span> x <span style="color:#339933">=</span> $<span style="color:#009900">(</span><span style="color:#3366cc">'#divid'</span><span style="color:#009900">)</span>.<span style="color:#660066">position</span><span style="color:#009900">(</span><span style="color:#009900">)</span>.<span style="color:#660066">top</span><span style="color:#339933">;</span>
<span style="color:#000066; font-weight:bold">var</span> y <span style="color:#339933">=</span> $<span style="color:#009900">(</span><span style="color:#3366cc">'#divid'</span><span style="color:#009900">)</span>.<span style="color:#660066">position</span><span style="color:#009900">(</span><span style="color:#009900">)</span>.<span style="color:#660066">left</span><span style="color:#339933">;</span>