// JavaScript Document
 //屏蔽鼠标右键功能
function onKeyDown() 
{ 
if ((event.keyCode==116)||(window.event.ctrlKey)||(window.event.shiftKey)||(event.keyCode==122)) 
{ 
event.keyCode=0; 
event.returnValue=false; 
} 
} 

function yxl() { 
if(window.event.altKey) 
{ 
window.event.returnValue=false; 
} 
} 
document.onkeydown=yxl 


function show_set(mylink)   //定义小窗口大小
{
  window.open(mylink,'newwindow','top=80,left=200,width=502,height=350,scrollbars=auto')
}
function show_small(mylink)   //定义小窗口大小
{
  window.open(mylink,'newwindow','top=80,left=200,width=400,height=200,scrollbars=auto')
}
function show_set_auto(mylink)   //定义小窗口大小
{
  window.open(mylink,'newwindow','top=80,left=200,width=502,height=550,scrollbars=yes')
}
function Announce(mylink)   //定义小窗口大小
{
  window.open(mylink,'newwindow','top=80,left=200,width=730,height=455,scrollbars=yes')
}