function setPrinterCss()
{
    setActiveStyleSheet("printer")
}

function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) 
  {
        if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) 
        {
            a.disabled = true;
            if(a.getAttribute("title") == title)
            { 
              a.disabled = false;
            }
         }
            
   }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

function hitEnter(e)
{
    var keynum;
    var keychar;

    if(window.event) // IE
    {
        keynum = e.keyCode;
    }
    else if(e.which) // Netscape/Firefox/Opera
    {
        keynum = e.which;
    }
    
    keychar = String.fromCharCode(keynum);
    
    if (keychar == 13 || keynum == 13)
    {
        isReady('form1');
    }
}

function isNumberKey(evt)
{
    var charCode = (evt.which) ? evt.which : event.keyCode;
    if ((charCode < 48 || charCode > 58))
    {
        return false;
    }
    else
    {
        return true;
    }
}