在一些网址导航网站，我们经常看到快速登陆邮箱的功能，今天我们也来分享一段这样的代码，由于现在的邮箱登陆机制都比较严格，可能有的已经失效了，因此这些代码可供大家参考，欢迎给网来信或评论您的意见！
代码：
<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><SCRIPT language=JavaScript>function sm(form){e=document.supermail.mq.selectedIndex; //取下拉菜单的选定项e=document.supermail.mq[e].value; //取选定项的值username=document.supermail.username.value; //从表单中取用户名password=document.supermail.password.value; //从表单中取密码if(document.supermail.username.value==""){ //检查用户名是否为空alert("请输入帐号！"); //如果为空则提示document.supermail.username.focus(); //将提示符移到“用户名”输入框return //退出}if(document.supermail.password.value==""){ //如果密码框为空alert("请输入密码！"); //则给出提示document.supermail.password.focus(); //将提示符移到“密码”输入框return //退出}//如果输入了用户名和密码，则可以执行到这一步。接下来根据选择进入相应的邮箱。if(e=="163"){location="http://web.163.net/cgi/login?user="+username+"&pass="+password;}if(e=="263"){location="http://freemail.263.net/cgi/login?user="+username+"&pass="+password;}if(e=="188"){location="http://www.188.net/prog/login?user="+username+"&pass="+password;}if(e=="126"){location="http://www.126.com/prog/login?email="+username+"&password="+password;}if(e=="21cn"){location="http://202.104.32.236/UserName/ID/SignIn.gen?LoginName="+username+"&passwd="+password+"&DomainName=21cn.com";}if(e=="371"){location="http://www.371.net/prog/login?user="+username+"&pass="+password;}if(e=="990"){location="http://www.990.net/prog/login?user="+username+"&pass="+password;}if(e=="netease"){location="http://freemail.netease.com/prog/login?user="+username+"&pass="+password;}if(e=="yeah"){location="http://freemail.yeah.net/prog/login?user="+username+"&pass="+password;}if(e=="usa"){location="http://www.netaddress.com/tpl/Door/login?UserID="+username+"&passwd="+password;}if(e=="bigfoot"){location="http://members.bigfoot.com/Member?Mbr-Email="+username+"&Mbr-Password="+password;}if(e=="hotmail"){location="http://209.185.130.253/cgi-bin/start?login="+username+"&passwd="+password;}if(e=="gfinger"){location="http://www.gfinger.com/email-cgi/mail_login.pl?USERNAME="+username+"&PASSWORD="+password;} }</SCRIPT><title>快速邮局登录代码</title></head><body><form action=javascript:sm(this.form) method=post name=supermail><!--这里的form表单域的提交目标是sm函数，由这个函数接管提交过程。--><table bgcolor=#c0c0c0 border=1 bordercolordark=#ffffffbordercolorlight=#000000 cellpadding=3 cellspacing=0 width="250"><tr><td><font size="2">天下邮局一网打尽——</font><tbody><center><tr><td width="100%"><div align=center><table border=0 cellpadding=3 cellspacing=0><tbody><tr><td><font size="2">邮局:</font></td><td><select name=mq size=1 style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt" tabindex=1><option selected>--请在这里选择--</option><option value=163>163</option><option value=263>263</option><option value=188>188</option><option value=126>126</option><option value=21cn>21cn</option><option value=371>371</option><option value=990>990</option><option value=netease>netease</option><option value=yeah>yeah</option><option value=usa>usa</option><option value=bigfoot>bigfoot</option><option value=hotmail>hotmail</option><option value=gfinger>gfinger</option></select></td></tr><tr><td><font size="2">帐号:</font></td><td><input name=username size=19 style="font-family: 宋体; font-size: 9pt; border: 1 solid #000000" tabindex=2></td></tr><tr><td><font size="2">密码:</font></td><td><input name=password size=19 style="font-family: 宋体; font-size: 9pt; border: 1 solid #000000" tabindex=2 type=password></td></tr></center><tr><td align=middle colspan="2"><p align="right"><input name=enter style="font-family: 宋体; font-size: 9pt; background-color: #FFFFFF; border: 1 solid #000000" tabindex=3 type=submit value=进入></p></td></tr></tbody></table></div></td></tr><center></TBODY></center></table></form><!-- <script type="text/javascript" src="skin/js/auto_img.js"></script> </div> <div class="_udz26f1p8k"></div> <script type="text/javascript"> (window.slotbydup = window.slotbydup || []).push({ id: "u6783848", container: "_udz26f1p8k", async: true }); 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