判断窗口是关闭还是刷新
<script>
functionwindow.onbeforeunload(){
with(window.event)if(clientY<0&&clientX>document.body.clientWidth||altKey)alert("关闭")
}
</script>
firefox复制文本js代码
<script>
functioncopyToClipboard(txt){
if(window.clipboardData){
window.clipboardData.clearData();
window.clipboardData.setData("Text",txt);
}elseif(navigator.userAgent.indexOf("Opera")!=-1){
window.location=txt;
}elseif(scape){
try{
netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
}catch(e){
alert("被浏览器拒绝！\n请在浏览器地址栏输入'about:config'并回车\n然后将'signed.applets.codebase_principal_support'设置为'true'");
}
varclip=Components.classes['@/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);
if(!clip)
return;
vartrans=Components.classes['@/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);
if(!trans)
return;
trans.addDataFlavor('text/unicode');
varstr=newObject();
varlen=newObject();
varstr=Components.classes["@/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);
varcopytext=txt;
str.data=copytext;
trans.setTransferData("text/unicode",str,copytext.length*2);
varclipid=Components.interfaces.nsIClipboard;
if(!clip)
returnfalse;
clip.setData(trans,null,clipid.kGlobalClipboard);
}
}
</script>
<buttononclick="copyToClipboard('你好！');">复制文本“你好！”</button>
<textareaid="test"></textarea>
