function StartProgress()
{
	document.getElementById('topbar').style.display = '';
}

function StopProgress()
{
	document.getElementById('topbar').style.display = 'none';
}

function StartProcess(hideme,showme)
{
    hideme.style.display='none';
    showme.style.display='';
}
function EndProcess(showme,hideme)
{
    hideme.style.display='none';
    showme.style.display='';
}

function IsNumeric(sText)
{
   var ValidChars = "0123456789.-";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
}