复制代码 代码如下:

//语法：prev(element)

//参数：element对象

//返回：对象在当前级别中是第几个元素,从1开始

//<SPAN class=sep>2010-08-26 15:13:55</SPAN>

function prev(elem,cont) {

if(!cont){cont=1}

elem = elem.previousSibling;

if(elem){return prev(elem,(cont+1))}

return cont

}

prev($("ext-gen232"))