Pull in News from Yahoo API Using JSON

/*Yahoo Search URL 
 * When you click the submit button, the query in the input box is passed to this
 * function. It creates a URL including the query, output and callback(what will
 * run once the response is recieved).
 */
function searchYahoo(query){
	var url="http://api.search.yahoo.com/NewsSearchService/V1/newsSearch?";
	url+= "appid=adactio";
	url+= "&query=" +escape(query);
	url+= "&output=json";
	url+= "&callback=parseResponse";
	getScript(url);
}
/*Generate Script Tag
 * The URL that was created above is passed to this function. It creates a script
 * tag that is then inserted into the page. This allows you to pull data from external
 * domains.
 */
function getScript(url){
	var scriptTag = document.createElement("script");
	scriptTag.setAttribute("type", "text/javascript");
	scriptTag.setAttribute("src", url);
	document.getElementsByTagName("head")[0].appendChild(scriptTag);
}
/*The callback function
 * A query has been sent to the server, the file has been generated with the results
 * is inserted into the header of the page. This callback function is run and extracts
 * the info you want and inserts it into the document using the DOM. Note the data
 * variable which contains the information to be formatted.
 */
function parseResponse(data) {
	var results = document.getElementById("results");
 
	while(results.hasChildNodes()){
		results.removeChild(results.lastChild);
	}
	for(i=0;i<data.ResultSet.Result.length;i++){
		var yhTitle = data.ResultSet.Result[i].Title;
		var yhSummary = data.ResultSet.Result[i].Summary;
 
		//create the header
		var theHeader = document.createElement("h2");
		var theHeaderText = document.createTextNode(yhTitle);
		theHeader.appendChild(theHeaderText);
		results.appendChild(theHeader);
 
		//create the summary
		var theSummary = document.createElement("p");
		var theSummaryText = document.createTextNode(yhSummary);
		theSummary.appendChild(theSummaryText);
		results.appendChild(theSummary);
	}
}