function aprifinestra(modo)
{
switch (modo)
        {
        case 1:
                {
                window.open('amalthea.htm', 'Popup', 'menubar=no, scrollbars=no, left=100, top=100, width=550, height=413')
                break
                }
        case 2:
                {
                window.open('amalthea_amb.htm', 'Popup', 'menubar=no, scrollbars=no, left=100, top=100, width=413, height=550')
                break
                }
        case 3:
                {
                window.open('lysithea.htm', 'Popup', 'menubar=no, scrollbars=no, left=100, top=100, width=550, height=413')
                break
                } 
		case 4:
                {
                window.open('lysithea_amb.htm', 'Popup', 'menubar=no, scrollbars=no, left=100, top=100, width=413, height=550')
                break
                }
		case 5:
                {
                window.open('himalia.htm', 'Popup', 'menubar=no, scrollbars=no, left=100, top=100, width=550, height=413')
                break
                }
		case 6:
                {
                window.open('himalia_amb.htm', 'Popup', 'menubar=no, scrollbars=no, left=100, top=100, width=413, height=550')
                break
                }
		}
}