$(function() {

    var $imgURL;

    var postData = $.getJSON('http://digwp.com/?json=1&count=50&custom_fields=PostThumb&include=value,label,title,custom_fields,excerpt', function(postData) {
            
        $('#s').autocomplete({
    		delay: 0,
    		disabled: true,
    		source: postData.posts
    	})
    	.data( "autocomplete" )._renderItem = function( ul, item ) {
    	
    	   if (!item.custom_fields.PostThumb) {
                $imgURL = "/images/minilink.png";
            } else {
                $imgURL = item.custom_fields.PostThumb;
            }
    	    	
    		return $( "<li></li>" )
    			.data( "item.autocomplete", item )
			    .append( "<a class='group'><img class='thumb' src='" + $imgURL + "' />" + item.title + "<br /><small>" + item.excerpt + "</small></a>" )
    			.appendTo( ul );
    
    	};
    
    });
    
});