1.TimeOut
<script language="JavaScript">
function moveover(txt) {
   window.status = txt;
   setTimeout("erase()",1000);
}
function erase() {
   window.status="";
}
</script>
2.histry
history.go(-1) 和 history.go(1)
3.function setfocus() {
document.first.text1.focus();
return;}
                    
                
                
                
            
        
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