function showList(url,winWidth,winHeight) {
  sList = window.open(url, "list", "menubar=yes,location=yes,resizable=yes,scrollbars=yes,status=yes,width="+winWidth+",height="+winHeight+"");
  sList.focus();
}

function remLink() {
  if (window.sList && window.sList.open && !window.sList.closed)
    window.sList.opener = null;
}

function IsNumeric(strString) {
var strValidChars = "0123456789";
var strChar;
var blnResult = true;

if (strString.length == 0) return false;

//  test strString consists of valid characters listed above
    for (i = 0; i < strString.length && blnResult == true; i++)
      {
      strChar = strString.charAt(i);
      if (strValidChars.indexOf(strChar) == -1)
         {
         blnResult = false;
         }
      }
return blnResult;
}