function init(){
externalLinks();
}

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 externalLinksOff() { 
 if (!document.getElementsByTagName) return;
  document.getElementById("linkdisable").style.display="none"; 
 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 = "_self"; 
 } 
} 


function leftarrowover(name){
document[name].src="images/leftarrowon.gif";
}
function leftarrowout(name){
document[name].src="images/leftarrow.gif";
}

function ShowImage(SpecImage,DescImage,w,h,retloc){
picturepage="picturepage.html?"+SpecImage +","+DescImage+","+w+","+h;
 if((retloc.length)>0){
 picturepage=picturepage+","+retloc;
 }
location.href=picturepage;
}

function bigPicture(){
urlquery=location.href.split("?");
urlterm=urlquery[1].split(",");
var space=/%20/g;
urlterm[1]=urlterm[1].replace(space," ");
document.getElementById("bigpicture").src="gallery/"+urlterm[0];
document.getElementById("imagedesc").innerHTML=urlterm[1];
document.getElementById("bigpicture").width=urlterm[2];
document.getElementById("bigpicture").height=urlterm[3];
}

function goback(){
urlquery=location.href.split("?");
urlterm=urlquery[1].split(",");
 if (urlterm.length>4){
  location.href="gallery.html?"+ "#"+urlterm[4];
  }
 else{
 history.back();
 }
}