function GetActualScreenSize()
{
    return {x:(screen.availWidth ? screen.availWidth : screen.width), y:(screen.availHeight ? screen.availHeight : screen.height) };
}

function f_filterResults(n_win, n_docel, n_body) {
	var n_result = n_win ? n_win : 0;
	if (n_docel && (!n_result || (n_result > n_docel)))
		n_result = n_docel;
	return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result;
}

function f_clientWidth() {
	return f_filterResults (
		window.innerWidth ? window.innerWidth : 0,
		document.documentElement ? document.documentElement.clientWidth : 0,
		document.body ? document.body.clientWidth : 0
	);
}
function f_clientHeight() {
	return f_filterResults (
		window.innerHeight ? window.innerHeight : 0,
		document.documentElement ? document.documentElement.clientHeight : 0,
		document.body ? document.body.clientHeight : 0
	);
}

function GetVirtualScreenSize()
{
    var obj = {};
    obj.x = f_clientWidth();
    obj.y = f_clientHeight();
    return obj
}

function copyToClipboard(s)
{
	if( window.clipboardData && clipboardData.setData )
	{
		clipboardData.setData("Text", s);
	}
	else
	{
        netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
   
        var clip = Components.classes['@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);
        if (!clip) return;
       
        var trans = Components.classes['@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);
        if (!trans) return;

        trans.addDataFlavor('text/unicode');

        var str = new Object();
        var len = new Object();

        var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);

        var copytext=s;

        str.data=copytext;

        trans.setTransferData("text/unicode",str,copytext.length*2);

        var clipid=Components.interfaces.nsIClipboard;

        if (!clip) return false;

        clip.setData(trans,null,clipid.kGlobalClipboard);

    }

    return false;   
}