function noclick(scx)
{
if (navigator.appName == "Netscape" && scx.which == 3)
{	alert('Oops');return false; }
if (navigator.appVersion.indexOf("MSIE") != -1 && event.button == 2)
		{	alert('Oops');return false; }
}

function nokey(scx)
{
if ((navigator.appName == "Netscape") && (scx.modifiers==Event.CONTROL_MASK || scx.modifiers==Event.ALT_MASK))
	{alert('???');return false;}
if ((navigator.appVersion.indexOf("MSIE") != -1) && (event.ctrlKey || event.altKey))
	{alert('???');return false;}
}

if (navigator.appName=="Netscape")
	{
	document.captureEvents(Event.MOUSEDOWN);
	document.captureEvents(Event.KEYDOWN);
	}
document.onmousedown = noclick;
document.onkeydown=nokey;
//--------------------------------------------------------------------
var img_copy = new Image();
function img_off() {
img_copy.src=this.src;
img_copy.alt=this.alt;
this.src=null;
return false;
}
function img_on() {
this.src=img_copy.src;
return false;
}
for (j=0;j<document.images.length;j++)
	{
	imgs = document.images[j];
	if (imgs.height>50 && imgs.width>50 && imgs.parentElement.tagName!='A')
		{
		imgs.onmouseover = img_off;
		imgs.onmouseout = img_on;
		}
	}