function showmenu(allid,sid)
{
    var aid = allid.split(",");
    for (var i = 0; i < aid.length; i++)
    {
        document.getElementById(aid[i]).style.display = 'none';
    }
    document.getElementById(sid).style.display = '';
}

//页面跳转
function changePage(fileName,page) {
    location.href = fileName + 'page=' + page;
}

//Open Window
function OpenWindow(Url,Width,Height,WindowObj) {
	var ReturnStr = showModalDialog(Url,WindowObj,'dialogWidth:' + Width + 'pt;dialogHeight:' + Height + 'pt;status:no;help:no;scroll:no;');
	return ReturnStr;
}

//禁止刷新、回退
function onKeyDown()
{
    if ((event.altKey) || ((event.keyCode == 8) && (event.srcElement.type != "text" && event.srcElement.type != "textarea" &&  event.srcElement.type != "password")) || ((event.ctrlKey) && ((event.keyCode == 78) || (event.keyCode == 82))) || (event.keyCode == 116) )
    {
        event.keyCode       = 0;
        event.returnValue   = false;
    }
}

window.onload = function()
{
    document.onkeydown      = onKeyDown;
    //禁用鼠标右键
    document.oncontextmenu  = new Function("event.returnValue=false;");
    //禁用鼠标全选
    document.onselectstart  = new Function("event.returnValue=false;");
}