function generic_win(LINK,TARGET,WIDTH,HEIGHT){
	if(!WIDTH){
		WIDTH = 760
	}
	if(!HEIGHT){
		HEIGHT = 480
	}
    var screenW = screen.availWidth
    var screenH = screen.availHeight
    
    var screenX = ((screenW / 2) - (WIDTH / 2)) // half the width of the window
    var screenY = ((screenH / 2) - (HEIGHT / 2)) // half the height of the window

    var genWin = window.open(LINK, TARGET, 'menubar=no,toolbar=no,location=yes,status=no,scrollbars=yes,resizable=yes,width='+WIDTH+',height='+HEIGHT+',top='+screenY+',left='+screenX)
    genWin.focus()
	
}