imgur paging 320x200 (endless scroll)

var j=-450,a=il.match(/\S+/gim).map(function(v,i){return '<img src="http://127.0.0.'+ (v.charCodeAt(0)%20+1) + '/wp1/i.imgur.com/'+v+'.jpg?resize=320,200" style="width:320px;height:200px" />' });document.body.innerText="";

/* paging */
var dummy=document.body.innerHTML+= a.slice(j+=450,j+450).join("\n");

/* endless scroll */
var tmr1=setInterval(function(){
   var pos1=document.height-window.pageYOffset-window.innerHeight;
   if (j<a.length && pos1<=5000) {
      var dummy=document.body.innerHTML+= a.slice(j+=450,j+450).join("\n");
      }}
   ,300);