// Popup windows 

var newwin;

function launchwin(winurl,winname,winfeatures) {
	    
  if(newwin) { newwin.close(); }
  newwin = window.open(winurl,winname,winfeatures);
  newwin.focus();
}

function placeFocus() {
  if (document.forms.length > 0) {
    var field = document.forms[0];
      for (i = 0; i < field.length; i++) {
        if ((field.elements[i].type == "text") || (field.elements[i].type == "textarea") || (field.elements[i].type.toString().charAt(0) == "s")) {
        document.forms[0].elements[i].focus();
        break;
        }
      }
  }
}      

// Return characters pressed, in input boxes etc, and filter (e.g. numbers only)

function getkey(e) {
  if (window.event)
   return window.event.keyCode;
  else if (e)
   return e.which;
  else
   return null;
}

function goodchars(e, goods) {

  var key, keychar;
  key = getkey(e);
  if (key == null) return true;

  // get character
  keychar = String.fromCharCode(key);
  keychar = keychar.toLowerCase();
  goods = goods.toLowerCase();

  // check goodkeys
  if (goods.indexOf(keychar) != -1)
	return true;

  // control keys
  if ( key==null || key==0 || key==8 || key==9 || key==13 || key==27 )
     return true;

  // else return false
  return false;
}

function changeqty(dir, id) {

  currentqty = parseInt(document.getElementById(id).value);
  if (dir=='up') document.getElementById(id).value = currentqty+1;
  else if (dir=='down' && currentqty > 1)
    document.getElementById(id).value = currentqty-1;
  else if (dir=='down' && currentqty < 2)
    document.getElementById(id).value = 1;
}

function checksearch(searchform,searchbox)
{
  if (document.forms[searchform].elements[searchbox].value == "") {
    alert( "Please enter your criteria in the search box." );
    document.forms[searchform].elements[searchbox].focus();
    return false;
  }
  else if (document.forms[searchform].elements[searchbox].value.length < 4) {
    alert( "Search term should be more than 3 characters" );
    document.forms[searchform].elements[searchbox].focus();
    return false;
  }
  else return true;
}

function show_ee() {
  //
}