Ajuda com posts populares

/* CSS Popular Posts */
.PopularPosts .widget-content ul{list-style-type:none;overflow:hidden;}
#PopularPosts1 ul li .item-thumbnail{overflow:hidden;float:right;margin-left:0px;padding:1px;
background:#151515;}
#PopularPosts1 img {overflow:hidden;width:300px;height:250px;-ms-transform: scale(1.0);-webkit-transform: scale(1.0);-moz-transform: scale(1.0);transform: scale(1.0);transition:all .4s linear;-moz-transition:all .4s linear;-webkit-transition:all .4s linear;}
#PopularPosts1 img:hover{-ms-transform: scale(1.2);-webkit-transform: scale(1.2);-moz-transform: scale(1.2);transform: scale(1.2);transition:all .4s linear;-moz-transition:all .4s linear;-webkit-transition:all .4s linear;}
.PopularPosts .widget-content ul li{position:relative;padding:10px 0;margin:0 auto;
background:#303030;transition:all 0.3s ease-out;border-bottom:1px solid #202020;border-top:1px solid #444;}
.PopularPosts .widget-content ul li:first-child {border-top:none;}
.PopularPosts .widget-content ul li:last-child {border-bottom:none;}
.PopularPosts .widget-content ul li a{color:#bbb;transition:all 0.3s ease-out;}
.PopularPosts .widget-content ul li a:hover{color:#fff;}
.PopularPosts .widget-content ul li:hover{color:#fff;}
.PopularPosts .widget-content{background:#303030;}
.PopularPosts .item-thumbnail{float:left;padding:0;margin:0;}
.PopularPosts .item-title {color:#bbb;font-weight:300;font-size:13px;padding:5px;}
.PopularPosts .item-snippet {display:none;}

<script type='text/javascript'>
function redimin(id,size){
var artilugio = document.getElementById(id);
var sustitucion = artilugio.innerHTML;
artilugio.innerHTML = sustitucion.replace(/s72-c/g,"s"+size+"-c");
var imagenes = artilugio.getElementsByTagName("img");
for(var i=0;i&lt;imagenes.length;i++){ imagenes[i].width = size; imagenes[i].height = size; }
}
redimin("PopularPosts1",200);
</script>