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"

   }