function popup800x600 (URL)
				{
				window.open(URL, "popupwindow800x600", 'menubar=0, toolbar=0, location=0, directories=0, scrollbars=0, status=0, resizable=0, width=800, height=600');
				}

function popup900x600 (URL)
				{
				window.open(URL, "popupwindow900x600", 'menubar=0, toolbar=0, location=0, directories=0, scrollbars=0, status=0, resizable=0, width=900, height=600');
				}


function popup540x720 (URL)
				{window.open(URL, "popupwindow540x720", 'menubar=0, toolbar=0, location=0, directories=0, scrollbars=0, status=0, resizable=0, width=540, height=720');
				}
				
function popup500x375 (URL)
				{
				window.open(URL, "popupwindow500x375", 'menubar=0, toolbar=0, location=0, directories=0, scrollbars=0, status=0, resizable=0, width=500, height=375');
				}