自个儿动手-表单2
自己动手-表单2
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <script type="text/javascript"> window.onload=function(){ var btnTest=document.getElementById("btnTest"); btnTest.onclick=function(e){ var username=document.getElementById("username"); if(username.value=="macrotea"){ var loginForm=document.getElementById("loginForm"); loginForm.submit(); }else{ //方式1: /* if(e){ e.preventDefault();//标准方式 }else{ event.returnValue=false;//IE方式 }*/ //方式2: return false; } } } </script> <style type="text/csss"> </style> </head> <body> <form id="loginForm" name="loginForm" method="post" action="http://macrotea.iteye.com"> <p>用户名: <br /> <input name="username" type="text" id="username" value="macrotea1" /> <br /> <input type="button" name="btnTest" id="btnTest" value="测试"/> </p> </form> </body> </html>