//browser
     var ua = navigator.userAgent.toLowerCase()
     var ie = MAC = 0

     ie  = (ua.indexOf("msie") != -1)
     MAC = (ua.indexOf('mac') != -1)

function setVisibility(obj, state)
{
     var sb = document.getElementById(obj).style

     sb.visibility = state
}

function getVisibility(obj)
{
     var sb = document.getElementById(obj).style

     return (sb.visibility)
}

function setDisabled(obj, state)
{
     document.getElementById(obj).disabled=state
}

function setClass(id,c)
{
     document.getElementById(id).className=c
}

function focusElement(elem)
{
     try {
          elem.focus()
     }
     catch (e) {}
}

function selectElement(elem)
{
     elem.select()
}

function findPos(objstr) {
     // returns an array
     obj = document.getElementById(objstr)
     var curleft = curtop = 0

     if (obj.offsetParent) {
          curleft = obj.offsetLeft
          curtop = obj.offsetTop

          while (obj = obj.offsetParent) {
               curleft += obj.offsetLeft
               curtop += obj.offsetTop
          }
     }

     return [curleft,curtop]
}

function objTouching(rd, rt) {
     // determine if:
     // top of rd is within rt, or
     // bottom of rd is within rt

     // return values:
     // T - top within
     // B - bottom within
     // A - all within
     // null - not touching

     var ret = ""

     // start by making sure left or right edge of rd is within rt
     if (((rd.right >= rt.left) && (rd.right <= rt.right)) || ((rd.left >= rt.left) && (rd.left <= rt.right))) {
          if ((rd.top >= rt.top) && (rd.top <= rt.bottom)) {
               if ((rd.bottom >= rt.top) && (rd.bottom <= rt.bottom)) {
                    ret = "A"
               }
               else {
                    ret = "T"
               }
          }
          else {
               if ((rd.bottom >= rt.top) && (rd.bottom <= rt.bottom)) {
                    ret = "B"
               }
          }
     }

     return (ret)
}

function getRect(obj) {
     var rect = new Object();
     rect.top = rect.left = 0;
     var parentObj = obj;

     while (parentObj != null) {
          rect.top  += parentObj.offsetTop;
          rect.left += parentObj.offsetLeft;
          parentObj = parentObj.offsetParent;
     }

     rect.bottom = rect.top  + obj.offsetHeight;
     rect.right  = rect.left + obj.offsetWidth;
     return rect;
}

function getX(e) {
     var x = 0;

     if (ie) {
          x = e.clientX;

          if (!Mac) {
               x += document.documentElement.scrollLeft;
               x += document.body.scrollLeft;
          }
      }
      else {
          x = e.pageX + window.scrollX;
      }

      return x
}

function getY(e) {
     var y = 0;

     if (ie) {
          y = e.clientY;

          if (!Mac) {
               y += document.documentElement.scrollTop;
               y += document.body.scrollTop;
          }
     }
     else
     {
          y = e.pageY + window.scrollY;
     }

     return y;
}

function centerObject(win,w,h) {
     // center an object on screen taking into account the scroll region

     if (document.body) {
          w1 = (document.body.clientWidth-w)/2
          h1 = (document.body.clientHeight-h)/2

          w1 = w1+document.body.scrollLeft
          h1 = h1+document.body.scrollTop
     }
     else {
          var w1 = (win.innerWidth-w)/2
          var h1 = (win.innerHeight-h)/2

          w1 = w1+win.pageXOffset
          h1 = h1+win.pageYOffset
     }

     if (w1 < 1 )
          w1 = 1

     if (h1 < 1)
          h1 = 1

     return[w1,h1]
}

function sleep(msec) {
     var sd = new Date().getTime()
     var ed = new Date().getTime()

     while (sd+msec > ed) {
          ed = new Date().getTime()
     }
}

function winLoadCheck(id,msec,max,cnt,func) {
     cnt++
     if (cnt==max) {
          alert(id+" Failed to Load")
          return
     }

     if (!document.getElementById(id))
          setTimeout("winLoadCheck('"+id+"',"+msec+","+max+","+cnt+","+func+")",msec)
     else
          func()
}