日期:2014-05-17 浏览次数:20515 次
function KeyDown(){ //屏蔽鼠标右键、Ctrl+n、shift+F10、F5刷新、退格键 if((window.event.altKey)&& ((window.event.keyCode==37)|| //屏蔽 Alt+ 方向键 ← (window.event.keyCode==39))){ //屏蔽 Alt+ 方向键 → alert("不准你使用ALT+方向键前进或后退网页!"); event.returnValue=false; } if((event.keyCode==8)|| //屏蔽退格删除键 (event.keyCode==116)|| //屏蔽 F5 刷新键 (event.keyCode==112)|| //屏蔽 F1 刷新键 (event.ctrlKey&&event.keyCode==82)){ //Ctrl + R event.keyCode=0; event.returnValue=false; } if((event.ctrlKey)&&(event.keyCode==78)) //屏蔽 Ctrl+n event.returnValue=false; if((event.shiftKey)&&(event.keyCode==121)) //屏蔽 shift+F10 event.returnValue=false; if(window.event.srcElement.tagName == "A" && window.event.shiftKey) window.event.returnValue = false; //屏蔽 shift 加鼠标左键新开一网页 if((window.event.altKey)&&(window.event.keyCode==115)){ //屏蔽Alt+F4 window.showModelessDialog("about:blank","","dialogWidth:1px;dialogheight:1px"); return false;} if((window.event.altkey)&&(window.event.keyCode == 27)){alert("认真答题!");} } function Showhelp(){ alert("认真答题!"); return false; } </script> </HEAD> <body onload="LoadPage()" MS_POSITIONING="GridLayout" style="BACKGROUND-COLOR: #6699ff" onkeydown="KeyDown()" onhelp="Showhelp();return false;" onblur="document.focus();">