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";
    }
}

function showhide(id){
    if (document.getElementById){
        obj = document.getElementById(id);
        //obj2 = document.getElementById("img_"+id);
        if (obj.style.display == "none"){
            obj.style.display = "";
            //obj2.src="images/expand2.gif"
        }// else {
         //   obj.style.display = "none";
         //   obj2.src="images/expand.gif"
        //}
    }
} 

function hidequicklook(id){
    if (document.getElementById){
        obj = document.getElementById(id);
        //obj2 = document.getElementById("img_"+id);
        //if (obj.style.display == "none"){
        //    obj.style.display = "";
        //    obj2.src="images/expand2.gif"
        //} else {
            obj.style.display = "none";
        //    obj2.src="images/expand.gif"
        //}
    }
} 
window.onload = externalLinks;