var arrayGallery = new Array(12)
var g1No = 0;
var g2No = 0;
var g3No = 0;

function get_random(hiNo)
{
    var ranNum= Math.floor(Math.random()*hiNo)+1;
    return ranNum;
}


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 gallery(){

g1No = get_random(12)
while (g2No == 0 || g2No==g1No){
g2No = get_random(12);
}
while (g3No == 0 || g3No==g1No || g3No==g2No){
g3No = get_random(12);
}
document.write("<img src=\"i/t_"+g1No+".jpg\" id=\"g-1\" alt=\"\" width=\"75\" height=\"75\" />")
document.write("<img src=\"i/t_"+g2No+".jpg\" id=\"g-2\" alt=\"\" width=\"75\" height=\"75\" />")
document.write("<img src=\"i/t_"+g3No+".jpg\" id=\"g-3\" alt=\"\" width=\"75\" height=\"75\" />")

}  
  
window.onload = externalLinks;