js.jsp

是一个自己做的在线阅读的jsp网站

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
//判断用户的输入是否合法
function check(){
	if (registerform.username.value==""){
		alert("请输入用户名！");registerform.username.focus();return;
	}
	if (registerform.username.value.length<2){
		alert("用户名至少为2位，请重新输入！");registerform.username.focus();return;
	}	
	if (registerform.password.value==""){
		alert("请输入密码！");registerform.password.focus();return;
	}
	if (registerform.password.value.length<6){
		alert("密码至少为6位，请重新输入！");registerform.password.focus();return;
	}		
	if (registerform.email.value==""){
		alert("请输入Email地址！");registerform.email.focus();return;
	}
	var i=registerform.email.value.indexOf("@");
	var j=registerform.email.value.indexOf(".");
	if((i<0)||(j<0)){
		alert("您输入的Email地址不正确，请重新输入！");registerform.email.value="";registerform.email.focus();return;
	}
	registerform.submit();		
}
//判断用户的输入是否合法
function check_m(){
	if (myform.PWD1.value==""){
		alert("请输入原密码！");myform.PWD1.focus();return;
	}
	if (myform.PWD1.value!=myform.oldPWD.value){
		alert("您输入的原密码不正确，请重新输入！");myform.PWD1.focus();return;
	}		
	if (myform.PWD2.value==""){
		alert("请输入新密码！");myform.PWD2.focus();return;
	}
	if (myform.PWD3.value==""){
		alert("请确认新密码！");myform.PWD3.focus();return;
	}
	if (myform.PWD2.value!=myform.PWD3.value){
		alert("您两次输入的新密码不一致，请重新输入！");myform.PWD2.focus();return;
	}
		
	if (myform.Email.value==""){
		alert("请输入Email地址！");myform.Email.focus();return;
	}
	var i=myform.Email.value.indexOf("@");
	var j=myform.Email.value.indexOf(".");
	if((i<0)||(i-j>0)||(j<0)){
		alert("您输入的Email地址不正确，请重新输入！");myform.Email.value="";myform.Email.focus();return;
	}
	myform.submit();		
}