必须在选择项中同意选择，你才能导航到下一个页面

<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <title>网页教学网</title> </head> <body bgcolor="#99CC99"> <h2>模仿MSN消息提示的效果</h2> <p>说明：很酷的模仿MSN消息提示的效果。打开页面之后你会发现右下角有消息框弹出，跟MSN的消息框很相似！<br> </p> <p> <SCRIPT> var oPopup = window.createPopup(); var popTop=50; function popmsg(msgstr){ var winstr="<table style=\"border: 1 solid #FFA6CA\" width=\"241\" height=\"172\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" background=\"http://www.smallrain.net/images/login_bg.gif\" >"; winstr+="<tr><td height=\"30\"> </td></tr><tr><td align=\"center\"><table width=\"90%\" height=\"110\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">"; winstr+="<tr><td valign=\"top\" style=\"font-size:12px; color: red; face: Tahoma\">"+msgstr+"</td></tr></table></td></tr></table>"; oPopup.document.body.innerHTML = winstr; popshow(); } function popshow(){ window.status=popTop; if(popTop>1720){ clearTimeout(mytime); oPopup.hide(); return; }else if(popTop>1520&&popTop<1720){ oPopup.show(screen.width-250,screen.height,241,1720-popTop); }else if(popTop>1500&&popTop<1520){ oPopup.show(screen.width-250,screen.height+(popTop-1720),241,172); }else if(popTop<180){ oPopup.show(screen.width-250,screen.height,241,popTop); }else if(popTop<220){ oPopup.show(screen.width-250,screen.height-popTop,241,172); } popTop+=10; var mytime=setTimeout("popshow();",50); } popmsg(" 网页教学网欢迎你！更多网页特效代码,尽在网页教学网！"); </SCRIPT> </p> </body> </html>