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js返回上一层的实现
<a href="<a href="javascript :history.back(-1)">返回上一页</a> <a href="javascript :;" onClick="javascript :history.back(-1);">返回上一页</a>
按钮:
<input type="button" name="Submit" onclick="javascript:history.back(-1);" value="返回上一页">
图片:
<a href="javascript :;" onClick="javascript :history.back(-1);"><img src="图片路径" border="0" title="返回上一页"></a>
<SCRIPT language=javascript> function go() { window.history.go(-1); } setTimeout("go()",3000); </SCRIPT>