function payment(f) {
     data = new Array
   (
    350,250,200,150,
	444,344,294,244,
	714,614,564,514,
	1064,1064,1014,964,
	1839,1739,1689,1639
    )
     f.result.value = "$ "+ data[(f.familysize.selectedIndex)+(f.netincome.selectedIndex*4)] +".00"
   }