use only one instance of the httpClient?

app.js

var serviceList = [];
var xhr;

var tmpSvc = fetchServicesByProfile(Titanium.UI.currentWindow.profileid);
for(i=0;i<tmpSvc.length;i++)
{
   //Populate serviceList array.
}

function processServiceList(index)
{
	var serviceinfo = serviceList[index];

        // use only one httpclient
        if ( xhr == null ) {
	    xhr = Ti.Network.createHTTPClient();
        }

	var requestURI = '<appropriate uri here>';
	xhr.open("GET",requestURI);
	xhr.onload = function()
	{
		if (this.readyState == xhr.DONE && this.status == 200)
		{
			var doc = this.responseXML.documentElement;

			if (index < serviceList.length - 1)
			{
				processServiceList(index + 1);
			}
			else
			{
				//Ti.API.debug('done with this.');
				//loadStreamsIntoTableView(Titanium.UI.currentWindow.profileid);
			}
		}
	}
	xhr.send();
}

processServiceList(0);