login.js

研究和开发移动道中数字传输技术的第一步工作就是认识移动信道本身的特性

function login(frm) {
 if (!chkValidChar(frm.sAccount.value)) return false;
 if (!chkValidChar(frm.sPwd.value)) return false;
 if (frm.sAccount.value.length<5){
   alert("账号字符太少，应该为5-32个字符！");
   frm.sAccount.focus();
   return false;
 } 
 if (frm.sPwd.value.length<5){
    alert("密码字符太少，应该为5-32个字符！");
    frm.sPwd.focus();
    return false;
 } 
 if (frm.stdwin!=null) {
	 selwin(); 
 }
 if (frm.rem!=null) remberact(frm.rem.checked,frm.sAccount.value);	 
 return true;
}
function getaccount() {
	var sAct = GetCookie('sYunyinUserId');
	if (sAct != null) {
		frm.sAccount.value=sAct;
		 if (frm.rem!=null) frm.rem.checked=true;
	} else {
		frm.sAccount.value="";
		 if (frm.rem!=null) frm.rem.checked=false;
	}
}

function remberact(bChk,sVal) {
	var expdate=new Date(9999,11,31)
	if (bChk) {
		SetCookie('sYunyinUserId',sVal,expdate);
	} else {
		DeleteCookie('sYunyinUserId');	
	}
}

function DeleteCookie (name) {  
var exp = new Date();  
exp.setYear (exp.getYear() - 1);  
document.cookie = name + "=; expires=" + exp.toGMTString();
}

function chkValidChar(s) {  
  var i,c;
  var badChar = " ><,[]{}?/+=|\\'\":;~!@#$%^&()`";   
  for (i = 0; i < s.length; i++) {   
  	c = s.charAt(i);
	if (badChar.indexOf(c) > -1)	{
    	alert("[ " + c + " ]是非法字符，请重新输入！");
    	return false;
     }
	}  
	return true;	 
}
function selwin(){
	if (frm.stdwin.checked) {
		frm.target="_self";
		return;
	}	
	frm.target="prefwin";
	newwin=window.open("","prefwin","scrollbars")
	if (document.all){
		newwin.moveTo(0,0)
		newwin.resizeTo(screen.width,screen.height-20)
	}
	newwin.focus();
	//self.close(true);
}
function loginsel(frm){
  frm.action=frm.sUtype.value+"/chklogin.cfm";
}
function usereg(frm){
  window.location.href=frm.sUtype.value+"/mebreg.cfm";
}