/*this page crates an ajax request object.
this page is included by other pages that need to perform XMLHttpRequest.
*/
var sbajax=false;
if(window.XMLHttpRequest)
	sbajax=new XMLHttpRequest();		//IE 7,mozilla,safari,firefox.opera, mostbrowser
else if(window.ActiveXObject)			//older IE
{
	try { 
		sbajax = new ActiveXObejct("Msxml2.XMLHTTP");
		} catch (e1) {
			try {
				sbajax = new ActiveXObejct("Microsoft.XMLHTTP");
				} catch (e2) {}
			}
}
//if(!sbajax)	
//alert("Some page fuctionality is unavailable.");
///////////captcha functions


/////===========
function refresh_videos(sbtemp_itemid,del)// 1 for add video 0 for remove
{
	if(sbajax)
	{
		sbajax.open('get','getvideos.php?sbtemp_itemid='+sbtemp_itemid+'&del='+del);
		if(del==1)
			sbajax.onreadystatechange=handle_refresh_videos;
		else
			sbajax.onreadystatechange=handle_delete_videos;
		sbajax.send(null);
		return false;
	}
}
function refresh_provideos(sbtemp_itemid,del)// 1 for add video 0 for remove
{
	if(sbajax)
	{
		sbajax.open('get','getpro_videos.php?sbtemp_itemid='+sbtemp_itemid+'&del='+del);
		if(del==1)
			sbajax.onreadystatechange=handle_refresh_videos;
		else
			sbajax.onreadystatechange=handle_delete_videos;
		sbajax.send(null);
		return false;
	}
}

function handle_refresh_videos()
{
	if((sbajax.readyState==4) && (sbajax.status==200))
		window.opener.document.getElementById('videothumb').innerHTML=sbajax.responseText;
}

function handle_delete_videos()
{
	if((sbajax.readyState==4) && (sbajax.status==200))
		document.getElementById('videothumb').innerHTML=sbajax.responseText;

}


///////--------Check chat requests
function sb_check_requests()
{
	if(sbajax)
	{
		sbajax.open('get','check_chat_requests.php');
		sbajax.onreadystatechange=sb_handle_request;
		sbajax.send(null);
		return false;
	}
}

function sb_handle_request()
{
	if((sbajax.readyState==4) && (sbajax.status==200))
	{
		if(!isNaN(sbajax.responseText) && sbajax.responseText > 0)
		{	
			sbnotify_chat_requests(sbajax.responseText);
		//	clearInterval(sbtimer_id);
		}
	}
}

///////--------Check chat request replies
function sb_check_request_reply(id)
{
	if(sbajax)
	{
		sbajax.open('get','check_chat_request_reply.php?sb_id=' + id);
		sbajax.onreadystatechange=sb_handle_request_reply;
		sbajax.send(null);
		return false;
	}
}

function sb_handle_request_reply()
{
	if((sbajax.readyState==4) && (sbajax.status==200))
	{
		if(!isNaN(sbajax.responseText) && sbajax.responseText > 1 && sbajax.responseText < 5 )	//means 2 to 4
		{
			sbnotify_chat_reply(sbajax.responseText);
		}
	}
}
///////--------Update chat window
function sb_update_chat_window(id, current_span_id)
{
	if(sbajax)
	{
		sbajax.open('get','update_chat_window.php?sb_id=' + id + '&id=' + current_span_id);
		sbajax.onreadystatechange=sb_handle_update_chat_window;
		sbajax.send(null);
		return false;
	}
}

function sb_handle_update_chat_window()
{
	if((sbajax.readyState==4) && (sbajax.status==200))
	{
		if(sbajax.responseText.length > 0)	
		{
			if(parseInt(sbajax.responseText) == 555)
			{
				clearInterval(sbUpdateChatTimer);
				sbforce_quit();
			}
			else
				sbaddNode(sbajax.responseText);
		}
	}
}