/*****************************************************************************************
* Ajax Rotating Includes script- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
******************************************************************************************/

//To include a page, invoke ajaxinclude(files_array, "ROTATETYPE") in the BODY of page.
//* file_array is the name of the array containing your list of files to include.
//* For "ROTATETYPE", valid values are "dailyw", "dailym", and "random", for each day of the week, each day of the month, and random, respectively.
//* Included file MUST be from the same domain as the page displaying it.

//Enter path to list of files to display.
//For rotatetype="dailyw", there must be 7 files, and for "dailym", 31 files. Otherwise, no restriction:

/* Create a variable for include files and pass it as a parameter to ajaxinclude. See example below: 
var includefiles=["sideboxfile_1.php", "sideboxfile_2.php", "sideboxfile_3.php"] */

var rootdomain="http://"+window.location.hostname

function ajaxinclude(files_array, rotatetype) {

	var page_request = false;
	
	if (window.XMLHttpRequest) { // if Mozilla, Safari etc
		page_request = new XMLHttpRequest();
	} else if (window.ActiveXObject) { // if IE
		try {
			page_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				page_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {
			}
		}
	} else {
		return false;
	}
		
	var url = choosefile(files_array, rotatetype);

	if (typeof files_array[url]=="undefined"){
		document.write("Error: No file for this day has been found.");
		return;
	} else {
		url=files_array[url];
	}

	page_request.open('GET', url, false); //get page synchronously
	page_request.send(null);
	writecontent(page_request);
}

function writecontent(page_request) {
	if (window.location.href.indexOf("http")==-1 || page_request.status==200) {
		document.write(page_request.responseText);
	}
}

function choosefile(files_array, rotatetype) {
	
	var today = new Date();
	var selectedfile = (rotatetype=="dailyw")? today.getDay() : rotatetype=="dailym"? today.getDate() : Math.floor(Math.random()*files_array.length);

	if (rotatetype == "dailyw" && selectedfile==0) { //if display type=="week days" and today is Sunday
		selectedfile = 7;
	}
	if (rotatetype == "dailyw" || rotatetype ==" dailym") {
		selectedfile--;  //remove 1 to sync with array index
	}
	return selectedfile;
}