Add optional method and data parameters to the base64encode() method

@@ -121,12 +121,14 @@
          * NOTE: we cannot use window.btoa() for some strange reasons here.
          *
          * @param  String  url     The url to download
+	 * @param  String  method  The method to use, optional: default GET
+	 * @param  String  data    The data to send, optional
 	 * @return string          Base64 encoded result
          */
-        base64encode: function(url) {
-            return this.evaluate(function(url) {
-                return __utils__.getBase64(url);
-            }, { url: url });
+        base64encode: function(url,method,data) {
+            return this.evaluate(function(url,method,data) {
+                return __utils__.getBase64(url,method,data);
+            }, { url: url, method: method, data: data });
         },
 
         /**

@@ -224,10 +224,12 @@
          * contents.
          *
          * @param  String  url  The resource url
+	 * @param  String  method The request method, optional
+	 * @param  Object  data The request data, optional
          * @return String       Base64 contents string
          */
-        this.getBase64 = function(url) {
-            return this.encode(this.getBinary(url));
+        this.getBase64 = function(url,method,data) {
+   		return this.encode(this.getBinary(url,method,data));
         };
 
         /**
@@ -235,14 +237,43 @@
          * fails but log errors.
          *
          * @param  String  url
+	 * @param  String  method 
+	 * @param  Object  data
          * @return string
          */
-        this.getBinary = function(url) {
+        this.getBinary = function(url, method, data) {
             try {
                 var xhr = new XMLHttpRequest();
-                xhr.open("GET", url, false);
+		if(method === undefined || ["GET","get","POST","post"].indexOf(method) == -1)
+		{
+			method = "GET";
+	    	}else{
+			method = method.toUpperCase();
+		}
+
+		xhr.open(method, url, false);
+               	this.log("Using HTTP method: '" + method + "'", "debug");
                 xhr.overrideMimeType("text/plain; charset=x-user-defined");
-                xhr.send(null);
+		if(method == "POST")
+		{
+			if(data === undefined)
+			{
+				data_str = "";
+			}else{
+				data_str = "";
+				for(k in data)
+				{
+					if(typeof(k) == "string" && typeof(data[k]) == "string")
+					{
+						data_str += "&" + escape(k) + "=" + escape(data[k]);
+					}
+				}
+				data_str = data_str.substring(1);
+			}
+			xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
+		}
+                this.log("Using request data: '" + data_str + "'", "debug");
+		xhr.send(method == "POST" ? data_str : null);
                 return xhr.responseText;
             } catch (e) {
                 if (e.name === "NETWORK_ERR" && e.code === 101) {