function trimString(s)
{
     // return a string with no spaces
     var n = ""

     if (s)
     {
          s = s.toString()

          for (var i=0; i<s.length; i++)
          {
               x = s.substring(i,i+1)
               if (x!=" ")
               {
                    n+=x
               }
          }
     }

     return(n)
}

function formatStringCall(id) {
     var s = getInputValue(id)
     var m = document.getElementById(id).getAttribute("format")

     s = formatString(s,m)
     setInputValue(id, s)
}

function formatString(s,m) {
     // format with supplied mask      s=621.5    m=#####.##
     ml = m.length                     //ml=8
     s = trimString(s.toString())

     // look for decimal point in value, if one in mask
     dp = s.indexOf(".",0)             //dp = 3
     mp = m.indexOf(".",0)             //mp = 5
     if (mp > -1) {
          if (dp == -1)
               s += "."                // add . to mask

          dp = s.indexOf(".",0)        //dp = 3
          sl = s.length                //sl = 5
          scad = (sl-dp)-1             //scad = 1
          mcad = (ml-mp)-1             //mcad = 2

          var rx = 10
          for (var i=1; i<mcad; i++)
               rx = rx*10

          // round
          var sf = parseFloat(s)
          sf = Math.round(sf*rx)
          sf = sf/rx
          s = sf.toString()

          dp = s.indexOf(".",0)
          if (dp == -1)
               s += "."

          dp = s.indexOf(".",0)
          sl = s.length
          scad = (sl-dp)-1
          mcad = (ml-mp)-1

          // pad with zeroes
          for (var i=1; i<mcad-scad+1; i++) {   //i=1, i<2
               s += "0"                //s = 621.50
          }
     }
     else {
          var sf = parseFloat(s)
          sf = Math.round(sf)
          s = sf.toString()
     }

     sl = s.length
     ns = new String()

     var fc, c, mc

     if (ml > sl) {
          // pad out string
          for (var i=0; i<ml-sl; i++) {
               s = " "+s
          }

          for (var i=0; i<ml; i++) {
               c = s.substr(i,1)

               if (c == " ") {
                    mc = m.substr(i,1)

                    switch (mc) {
                         case "9":
                              fc = "0"
                              break
                         case "#":
                              fc = " "
                              break
                         default:
                              fc = mc
                              break
                    }

                    ns += fc
               }
               else {
                    ns += c
               }
          }
     }
     else {
          ns = s
     }

     return(ns)
}


function isNull(x)
{
     if (trimString(x)=="")
     {
          return (true)
     }
     else
     {
          return (false)
     }
}

function onlyNum(fld)
{
     // input is a string field with possible non-numeric chars
     // output is a string with only numeric chars

     var s = fld
     var r = "1234567890"
     var n = ""

     if (s!="")
     {
          for (var i=0; i<s.length; i++)
          {
               t=s.substring(i,i+1)
               if (r.indexOf(t,0)!=-1)
               {
                    n+=s.substring(i,i+1)
               }
          }
     }

     return (n)
}

function toNumInt(x)
{
     if ((testNumeric(x) == false) || (x == ""))
     {
          return (parseInt(0))
     }
     else
     {
          return (parseInt(parseFloat(x)))  // to catch things like "09"
     }
}

function toNumFloat(x)
{
     if ((testNumeric(x) == false) || (x == ""))
     {
          return (parseFloat(0))
     }
     else
     {
          return (parseFloat(x))
     }
}

function testNumericCall(id) {
     var val = document.getElementById(id).value

     if (testNumeric(val) == false) {
          alert("Invalid Number")
          setTimeout("focusElement(document.getElementById('" + id + "'))",0)
          return (false)
     }
     else {
          return (true)
     }
}

function testNumeric(num) {
     if (isNaN(num))
          return (false)
     else
          return (true)
}

function testEmail(ea) {
     var a = ea.split("@")

     if (a.length != 2)  // only one @ allowed
          return(false)

     if (a[0] == "" || a[1] == "") // something before/after the @
          return(false)

     var b = a[1].split(".")

     if (b.length <= 1) // must have one dot
          return(false)

     if (b[0] == "" || b[1] == "") // something before/after the .
          return(false)

}