//---================  ???????????????? begin=====================//
//--------------------------------------------------//
//??????????????
function scrollit_r2l(seed)
{ 
 var m1  = '????!' ;
 var m2  = "????????!" ;
       var msg=m1+m2;
       var out = " "; 
       var c = 1; 
 var speed  = 120;
if (seed > 100)
{                seed-=2;
                var cmd="scrollit_r2l(" + seed + ")";   
             timerTwo=window.setTimeout(cmd,speed);}     
    else if (seed <= 100 && seed > 0)
     {                for (c=0 ; c < seed ; c++)
                      {       out+=" ";}   
       out+=msg;         seed-=2;      
   var cmd="scrollit_r2l(" + seed + ")";      
   window.status=out;         
 timerTwo=window.setTimeout(cmd,speed); }        
      else if (seed <= 0) 
{                if (-seed < msg.length) 
                  { 
                       out+=msg.substring(-seed,msg.length);        
                       seed-=2;                        
                       var cmd="scrollit_r2l(" + seed + ")";         
                       window.status=out;                     
       timerTwo=window.setTimeout(cmd,speed);}
       else {               window.status=" ";       
                 timerTwo=window.setTimeout("scrollit_r2l(100)",speed);
}
}
}
//scrollit_r2l(100);
//--------------------------------------------------//
//??????????????
<!--
myMsg = "????!????????!"

i=0

function scrollMsg() {

frontPart = myMsg.substring(i,myMsg.length)

backPart = myMsg.substring(0,i)

//window.status = frontPart + backPart

window.status = backPart

if (i < myMsg.length) {
i++
}

else {

i = 0

}

setTimeout("scrollMsg()",200)

}
//window.onload=scrollMsg
//--------------------------------------------------//
//??????????????

<!-- Begin
var Message='????!????????!';
var place=1;
function scrollIn() {
window.status=Message.substring(0, place);
if (place >= Message.length) {
place=1;
window.setTimeout("scrollOut()",300); 
} else {
place++;
window.setTimeout("scrollIn()",50); 
   } 
}
function scrollOut() {
window.status=Message.substring(place, Message.length);
if (place >= Message.length) {
place=1;
window.setTimeout("scrollIn()", 100);
} else {
place++;
window.setTimeout("scrollOut()", 50);
   }
}
//window.onload=scrollIn;

//---================  ???????????????? begin=====================//
/**??????????????????????????*/
function checkAll()
{
  for (var i=0;i<document.all.checkbox.length;i++)
    {
    var e = document.all.checkbox[i];
	   if(e.checked== true)
	   {
         e.checked = false ;
		 }
		else
		{
		   e.checked = true;
		}
    }
}


/** ????????????????div????*/
  function viewOrHiddenDiv(divname2){
    var divname = eval(divname2);
  
	if(divname.style.display=="none")   
		divname.style.display="";
	else
		divname.style.display="none";
}

/** ???????????? */
var popUpWin=0;
function popUpWindow(URLStr, left, top, width, height)
{
  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}

function popUpWindow2(URLStr, left, top, width, height)
{
  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=yes,resizable=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}


/** ??????????????  ???????????????????????????????????????? */
 function getRadioValue( name ) {
for (i=0;i<document.all(name).length;i++) {
if (document.all(name)[i].checked) 
	{ 
	  return document.all(name)[i].value;
    }
}
return "";
}