// 顶部提示文字24小时内只显示一次！
function get_cookie(Name) { 
var search = Name + "=" 
var returnvalue = ""; 
if (document.cookie.length > 0) { 
offset = document.cookie.indexOf(search) 
if (offset != -1) { 
offset += search.length 
end = document.cookie.indexOf(";", offset); 
if (end == -1) 
end = document.cookie.length; 
returnvalue=unescape(document.cookie.substring(offset, end)) 
} 
} 
return returnvalue; 
} 
function sysbaryes_no(){ 
if (get_cookie('sysbar')=='yes'){ 
var sysbar=document.getElementById("sysbar")
sysbar.style.display="none"
} 
else
{
document.cookie="sysbar=yes" 
}
} 
function offBar()
{
var sysbar=document.getElementById("sysbar")
sysbar.style.display="none"
}