YAHOO.util.Event.onDOMReady(function () {

// Use an XHRDataSource
var oDS = new YAHOO.util.XHRDataSource("/words.txt");
// Set the responseType
oDS.responseType = YAHOO.util.XHRDataSource.TYPE_TEXT;
// Define the schema of the delimited results
oDS.responseSchema = {
recordDelim: "\n",
fieldDelim: "\n"
};

// Instantiate the AutoComplete
var oAC = new YAHOO.widget.AutoComplete("q", "autocomplete", oDS);
oAC.applyLocalFilter = true; 
oAC.allowBrowserAutocomplete = false; 
oAC.animSpeed = 0.5;

});