function openwindow(url,name,height,width, scrollbars) 
{ 
	leftpos = (screen.width/2) - (width/2);
	features = "width=" + width + ",height=" + height + ",left=" + leftpos + ",top=200,scrollbars=" + scrollbars;
	window.open(url,name,features);
}



function openCalendar (controlname)
{
	openwindow('/calendar.aspx?control=' + controlname,'calendar',168,265,'no');
}


function openMap(location)
{
	window.open(location, 'GuernseyMap', 
		'width=1024, height=768, menubar=yes, scrollbars=no, resizable=yes');
}


function openVideo(island)
{
	window.open('/flash/video/' + island + '.html', 'VisitGuernsey_Video', 
		'width=360, height=340, menubar=no, scrollbars=no, resizable=no');
}


function openPostcard(imageid)
{
	window.open('/postcards/display.aspx?id=' + imageid, 'VisitGuernsey_Postcard', 
		'width=550, height=680, menubar=no, scrollbars=yes, resizable=no');
}