朽木

var message="";
///////////////////////////////////
function clickIE() {if (document.all) {(message);return false;}}
function clickNS(e) {if
(document.layers||(document.getElementById&&!document.all)) {
if (e.which==2||e.which==3) {(message);return false;}}}
if (document.layers)
{document.captureEvents(Event.MOUSEDOWN);document.onmousedown=clickNS;}
else{document.onmouseup=clickNS;document.oncontextmenu=clickIE;}
document.oncontextmenu=new Function("return false")

//右键开始
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
 
//禁止选择文本
var omitformtags = ["input", "textarea", "select"]
omitformtags = 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
}