function setimgcolor(thisimage)
{
	thisimage.src = thisimage.src.replace("&fltr[]=gray","");
}

function setimggray(thisimage)
{
	thisimage.src = thisimage.src + "&fltr[]=gray";
}	

var isNS = (navigator.appName == "Netscape") ? 1 : 0;
var enableRightClick = 0;
if (isNS)
{
	document.captureEvents(Event.MOUSEDOWN||Event.MOUSEUP);
}

function mischandler()
{
	if (enableRightClick == 1)
	{
		return true;
	}
	else
	{
		return false;
	}
}

function mousehandler(e)
{
	if (enableRightClick==1)
	{
		return true;
	}
	var myevent = (isNS) ? e : event;
	var eventbutton = (isNS) ? myevent.which : myevent.button;
	if ( (eventbutton==2) || (eventbutton==3) )
	{
			return false;
	}
}

//document.oncontextmenu = mischandler;
//document.onmousedown = mousehandler;
//document.onmouseup = mousehandler;