statusInfo = "温馨提示：右键单击选中文本将其复制到剪贴板" ;
defaultStatus = statusInfo;
document.oncontextmenu = copySelecttext;

function copySelecttext(){
var selectContent = document.selection.createRange().text;
if (selectContent != ""){
clipboardData.setData("text",selectContent);
status = "选中文本已复制" ;
setTimeout("window.status=statusInfo",1000);
}
return false;
}