// ***************************************************
// protect against right click
// ***************************************************
/*function handle_right_click_IE()
{
	if (event.button==2) return false;
}

function handle_right_click_NS(e)
{
	if (document.layers||document.getElementById&&!document.all)
		if (e.which==2||e.which==3) return false;
}

if (document.layers)
{
	document.captureEvents(Event.MOUSEDOWN);
	document.onmousedown=handle_right_click_NS;
}
else if (document.all&&!document.getElementById)
	document.onmousedown=handle_right_click_IE;

document.oncontextmenu=new Function("return false");
// end of right click 'protection' */


function showWindowCentered( title, link, w, h )
{
	var top		= (screen.height - h)/2;
	var left	= (screen.width - w)/2;

	window.open(link, title, 'toolbar=no,titlebar=no, width=' + w + ',height=' + h + ',status=no,menubar=no,location=no,left=' + left + ',top=' + top); 	
}

function showWindowCenteredWithOptions( title, link, w, h, user_options )
{
	var top		= (screen.height - h)/2;
	var left	= (screen.width - w)/2;
	
	if ( user_options )
		user_options = ',' + user_options;

	window.open(link, title, 'width=' + w + ',height=' + h + ',left=' + left + ',top=' + top + user_options); 	
}

function showPresentationWindow( title, link )
{
	showWindowCentered( title, link, 768, 528 );
}