var url = 'MyPage.aspx'; 
	

	var options='';
	var name='_blank';
	
	options = options + 'toolbar=1';
	options = options + ',location=1';
	options = options + ',directories=1';
	options = options + ',menubar=1';
	options = options + ',status=1';
	options = options + ',scrollbars=1';
	options = options + ',resizable=1';
	
	options = options + ',width=' + screen.width; 
	options = options + ',height=' + (screen.height -  70 );

	options = options + ',top=0';
	options = options + ',left=0';
					
	var win = window.open(url, name, options);