function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
 }
}
window.onload = externalLinks;

function changeBtnStyle() {
  document.getElementById("searchbtn").style.margin = "0 1px 1px 3px";
  document.getElementById("searchbtn").style.background = "#000000 (images/bg/leftbox-h2.gif repeat-x 0 0";
  document.getElementById("searchbtn").style.border = "1px solid #cccccc";
}

function changeBtnStyleBack() {
  document.getElementById("searchbtn").style.margin = "0 1px 1px 3px";
  document.getElementById("searchbtn").style.background = "transparent";
  document.getElementById("searchbtn").style.border = "0";
}

function popUp(strURL,intWidth, intHeight, blnScroll){
  var intScreenX;
  var intScreenY;

  intScreenX = (window.screen.width/2) - (intWidth / 2);
  intScreenY = (window.screen.height/2) - (intHeight / 2);
  var popup = window.open(strURL,"_blank","height=" + intHeight + ",width=" + intWidth + ",left=" + intScreenX + ",top=" + intScreenY + ",screenX=" + intScreenX + ",screenY=" + intScreenY + ",scrollbars=" + blnScroll);
  popup.focus();
}