rem: var ajaxURL = this.helperURLBase() + '&methodName='+this.updateMethod+'&folderID=' + folderID + ($('SecurityID') ? '&SecurityID=' + $('SecurityID').value : ''); 
add: var ajaxURL = this.helperURLBase() + '&methodName='+this.updateMethod+'&folderID=' + folderID + ($('SecurityID') ? '&SecurityID=' + $('SecurityID').value : '') + '&cacheKillerDate=' + parseInt((new Date()).getTime()) + '&cacheKillerRand=' + parseInt(10000*Math.random()); 
context: 	ajaxGetFiles: function(folderID,callback) {		if(!callback) callback = this.reapplyBehaviour.bind(this);		this.innerHTML = '<span style="float: left">Loading...</span>'		var ajaxURL = this.helperURLBase() + '&methodName='+this.updateMethod+'&folderID=' + folderID + ($('SecurityID') ? '&SecurityID=' + $('SecurityID').value : '');		new Ajax.Updater(this, ajaxURL, {			method : 'get', 			onComplete : callback,			onFailure : function(response) { errorMessage("Error getting files", response); }		});	},
meta: 7402	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7402/651196e36c34093e2c3e2ee233e08eac2213b2a6/ThumbnailStripField.js/buggy/javascript/ThumbnailStripField.js