如何回到先前的页面
< a href=" < %=request.serverVariables("Http_REFERER")% >" >preivous page < /a >
或用图片如: < img src="arrowback.gif" alt=" < %=request.serverVariables("HTTP_REFERER")% >" >
或用图片如: < img src="arrowback.gif" alt=" < %=request.serverVariables("HTTP_REFERER")% >" >