// megrendelo része
function Checker () {
  var j=Products.length;
  var i;
  var prodID = 0;
  var sum    = 0;
  var len = document.forms[0].length;
  for (i=0;i<len;i++)
  {
    if( document.forms[0].elements[i].type == "checkbox" ){
       if (!Products[prodID].length)
         prodID++;
       if( document.forms[0].elements[i].checked == true ){
         sum += Products[prodID][3];
       }
       prodID++;
    }
  }
  if( sum > 0 ){
    sum += ' EUR.'
  } else {
    sum = '';
  }
  //document.forms[0].elements['sum'].value = sum;
  WriteLayer( 'summa',false, sum );
}

function WriteLayer(ID,parentID,sText) {
    sText = '<b><font color="#009900">' + sText + '</font></b>';
	if (document.layers) {
		var oLayer = document.layers[ID].document;
		oLayer.open();
		oLayer.write(sText);
		oLayer.close();
	}
	else if (document.all) document.all[ID].innerHTML = sText
	else if (parseInt(navigator.appVersion)>=5&&navigator.appName=="Netscape") {
		document.getElementById(ID).innerHTML = sText;
	}
}
//megrendelo része