学步园

一，js屏蔽浏览器（IE和FireFox）的刷新功能

document.onkeydown=function()<br /> {<br /> if ((window.event.keyCode==116)|| //屏蔽 F5<br /> (window.event.keyCode==122)|| //屏蔽 F11<br /> (window.event.shiftKey && window.event.keyCode==121) //shift+F10<br /> )<br /> {<br /> window.event.keyCode=0;<br /> window.event.returnValue=false;<br /> }<br /> if ((window.event.altKey)&&(window.event.keyCode==115)){ //屏蔽Alt+F4<br /> window.showModelessDialog("about:blank","","dialogWidth:1px;dialogheight:1px");<br /> return false;<br /> }<br /> }
 

二，屏蔽右键

if (window.Event)<br /> document.captureEvents(Event.MOUSEUP);<br /> function nocontextmenu(){<br /> event.cancelBubble = true<br /> event.returnValue = false;<br /> return false;<br /> }<br /> function norightclick(e){<br /> if (window.Event){<br /> if (e.which == 2 || e.which == 3)<br /> return false;<br /> }<br /> else<br /> if (event.button == 2 || event.button == 3){<br /> event.cancelBubble = true<br /> event.returnValue = false;<br /> return false;<br /> }<br /> }<br /> document.oncontextmenu = nocontextmenu; // for IE5+<br /> document.onmousedown = norightclick; // for all others