var http_request;

function getHttpResponse(fileService, params, method) {
	try
	{	// Firefox, Opera 8.0+, Safari
		http_request=new XMLHttpRequest();
		if (http_request.overrideMimeType) {
            http_request.overrideMimeType('text/xml');
            // See note below about this line
        }
	}
	catch (e)
	{	// Internet Explorer
		try {
			http_request=new ActiveXObject("Msxml2.XMLHTTP");
		}
	
		catch (e)
		{
			http_request=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	
	if(http_request) {
		var qs = "";
		if(params.length) {
			for(var i=0; i < params.length-1; i+=2){
				qs += params[i] + "=" + params[i+1] + "&";
			}
		}
		
		url = fileService + "?" + qs;
		//alert(url);
		http_request.open(method, url, false);
		http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		http_request.send(null);
		
		if (http_request.status == 200) {
			var responseTXT =  http_request.responseText;
			return responseTXT;
		}
	}
}