//<![CDATA[

/* openWindow -------------------------------------------------------*/
function MM_openBrWindow(theURL,winName,features) { //v2.0
  var w = window.open(theURL,winName,features);
  w.focus();
}

/* ShowHide ---------------------------------------------------------*/
function showHide(targetID) { 
  if( document.getElementById(targetID)) { 
    if( document.getElementById(targetID).style.display == "block") {
      document.getElementById(targetID).style.display = "none";
    }
  else {
      document.getElementById(targetID).style.display = "block";
    }
  }
}

/* resturn to top ---------------------------------------------------*/
function returnToTop() {
  var x1 = x2 = x3 = 0;
  var y1 = y2 = y3 = 0;
  if (document.documentElement) {
      x1 = document.documentElement.scrollLeft || 0;
      y1 = document.documentElement.scrollTop || 0;
  }
  if (document.body) {
      x2 = document.body.scrollLeft || 0;
      y2 = document.body.scrollTop || 0;
  }
  x3 = window.scrollX || 0;
  y3 = window.scrollY || 0;
  var x = Math.max(x1, Math.max(x2, x3));
  var y = Math.max(y1, Math.max(y2, y3));
  window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));
  if (x > 0 || y > 0) {
      window.setTimeout("returnToTop()", 25);
  }
}

/* tab selector -----------------------------------------------------*/
function changeDisplay(prefix, targetNum, bgId, img) {
  var i;
  
  var divObj = document.getElementsByTagName('div');
  
  var divObjLen = divObj.length;
  var matchObj = new RegExp(prefix);

  var imgObj = document.getElementById(bgId);

  for (i = 0; i < divObjLen; i++) {
    var t = divObj[i];
    
    if (t.id.match(matchObj)) {
      if (t.id == prefix + targetNum) {
        t.style.display = 'block';
        
        if (imgObj) {
          imgObj.style.backgroundImage = 'url(' + img + ')';
        }
      }
      else {
        t.style.display = 'none';
      }
    }
  }
}

//]]>