function showsearch(id)
{

  element = document.getElementById("search_" + id)

  if(element.style.display == "none")
  {

    element.style.display = "block"

  }
  else
  {

    element.style.display = "none"

  }

}

function get_scroll() 
{
    var y = 0;
    if( typeof( window.pageYOffset ) == 'number' ) {
        // Netscape
        y = window.pageYOffset;
    } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
        // DOM
        y = document.body.scrollTop;
    } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
        // IE6 standards compliant mode
        y = document.documentElement.scrollTop;
    }
    return y;
}

function popup(id)
{

	// {handle: $('#popup-' + id + '-handle')}

    if($('#popup-' + id).css("display") == "none")
    {

      top_margin = get_scroll() + 50;

      // set coordinates, find center of screen, scrollHeight etc.
      $('#popup-' + id).css({top: top_margin + "px", left: "250px"})    

    }

    $('#popup-' + id).toggle("puff", {percent: 10}, 1000);
    $('#popup-' + id).draggable({handle: $('#popup-' + id + '-handle')});

}

function diner(id)
{

        // {handle: $('#popup-' + id + '-handle')}

    if($('#diner-' + id).css("display") == "none")
    { 

      top_margin = get_scroll() + 50;

      // set coordinates, find center of screen, scrollHeight etc.
      $('#diner-' + id).css({top: top_margin + "px", left: "250px"})

    }

    $('#diner-' + id).toggle("puff", {percent: 10}, 1000);
    $('#diner-' + id).draggable({handle: $('#diner-' + id + '-handle')});

}

function calcPrice() {
var frm = document.resform;
  var events = document.getElementsByTagName('INPUT');
  var checked = 0;
  var totaalprijs =0;
  var totaalkaart =0;
  for(i=0;i<events.length;i++) {
    if (events[i].name.substring(0,5) == 'prijs') {
     events[i].value=parseInt(events[i].value); 
     
     if (isNaN(events[i].value)) {
        events[i].value='';
      }
      var elm = eval("document.resform.kaart"+events[i].name);
      //alert(elm.value);
      totaalprijs += (events[i].value * elm.value);
      totaalkaart += (1*events[i].value);
    }
  }
frm.totaalkaart.value=totaalkaart;
totaalprijs= totaalprijs.toFixed(2);
frm.totaalprijs.value='E '+ totaalprijs;

}

function doPostBack() {
  document.resform.submit();
}