遇到网页上有精美图片或者精彩文字想保存时，通常大家都是选中目标后按鼠标右键，在弹出菜单中选择“图片另存为”或“复制”来达到我们的目的。但是，目前有许多网页都屏蔽了鼠标右键，那么用js如何实现禁止鼠标右键的功能呢？
1.与禁止鼠标右键相关的JS说明
1 <script type="text/javascript"> 2 document.oncontextmenu=new Function("event.returnValue=false;"); 3 document.onselectstart=new Function("event.returnValue=false;"); 4 </script>
2.禁止鼠标右键火狐失灵
<!DOCTYPE html> <html> <head> <title>禁止鼠标右键</title> <meta charset="utf-8"> </head> <body> <div class="poo">这个页面不能使用鼠标右键</div> <!-- 禁止鼠标右键 --> <script type="text/javascript"> if (window.Event){ document.captureEvents(Event.MOUSEUP); } function nocontextmenu(){ event.cancelBubble = true event.returnValue = false; return false; } function norightclick(e) { if (window.Event) { if (e.which == 2 || e.which == 3) return false; } else if (event.button == 2 || event.button == 3){ event.cancelBubble = true event.returnValue = false; return false; } } document.oncontextmenu = nocontextmenu; // for IE5+ document.onmousedown = norightclick; // for all others </script> </body> </html>
3.禁止选择文本
<script type="text/javascript"> var omitformtags=["input", "textarea", "select"]; omitformtagsomitformtags=omitformtags.join("|"); function disableselect(e){ if (omitformtags.indexOf(e.target.tagName.toLowerCase())==-1){ return false; } } function reEnable(){ return true; } if (typeof document.onselectstart!="undefined"){ document.onselectstart=new Function ("return false"); }else{ document.onmousedown=disableselect; document.onmouseup=reEnable; } </script>
4.屏蔽ctrl按键
document.onkeydown=function(){
if(event.ctrlKey)return false;
}