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<script type="text/javascript">document.oncontextmenu=new Function("event.returnValue=false;");document.onselectstart=new Function("event.returnValue=false;");</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 = trueevent.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 = trueevent.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;}
