_homeOn=new Image(120,30)
_homeOff=new Image(120,30)
_fortuneOn=new Image(120,30)
_fortuneOff=new Image(120,30)
_leucharsOn=new Image(120,30)
_leucharsOff=new Image(120,30)
_airrallyOn=new Image(120,30)
_airrallyOff=new Image(120,30)
_concordeOn=new Image(120,30)
_concordeOff=new Image(120,30)
_lowflyOn=new Image(120,30)
_lowflyOff=new Image(120,30)
_otherOn=new Image(120,30)
_otherOff=new Image(120,30)
_previousOn=new Image(70,30)
_previousOff=new Image(70,30)
_indexOn=new Image(70,30)
_indexOff=new Image(70,30)
_nextOn=new Image(70,30)
_nextOff=new Image(70,30)

_homeOn.src="../images/home2b.gif"
_homeOff.src="../images/home2.gif"
_fortuneOn.src="../images/fortuneb.gif"
_fortuneOff.src="../images/fortune.gif"
_leucharsOn.src="../images/leucharsb.gif"
_leucharsOff.src="../images/leuchars.gif"
_airrallyOn.src="../images/airrallyb.gif"
_airrallyOff.src="../images/airrally.gif"
_concordeOn.src="../images/conc03b.gif"
_concordeOff.src="../images/conc03.gif"
_lowflyOn.src="../images/lowflyb.gif"
_lowflyOff.src="../images/lowfly.gif"
_otherOn.src="../images/otherb.gif"
_otherOff.src="../images/other.gif"
_previousOn.src="../images/previousb.gif"
_previousOff.src="../images/previous.gif"
_indexOn.src="../images/indexb.gif"
_indexOff.src="../images/index.gif"
_nextOn.src="../images/nextb.gif"
_nextOff.src="../images/next.gif"

function validateSearchForm(frm) {
  /* Checks user has entered search data */
  if (frm.data.value == "") {
    alert("You must enter data to search for")
    frm.data.focus()
    return false
  }
  /* Checks user has entered valid search data by RE */
  re_search = /^[a-z0-9]+[a-z0-9 \.\+,-\/]+$/i
  if (! re_search.test(frm.data.value)) {
    alert("Invalid search data")
    frm.data.focus
    frm.data.select()
    return false
  }

  return true
}