var cb_xmlHttp;
var cb_f_n;
var cb_obj;
var cb_ne;
var cb_pr;
var cb_div_id;

function showBroadcastVal(link_type,f_name)
{
	cb_xmlHttp		=	cb_GetXmlHttpObject();

	if(f_name == "coffebreak")
	{
		cb_obj    = document.cb_form;
		cb_ne     = "nextCB";
		cb_pr     = "prevCB";
		cb_div_id = "coffeA_div";
	}
	if(f_name == "raw_video"){
		cb_obj    = document.raw_video;
		cb_ne     = "next1";
		cb_pr     = "prev1";
		cb_div_id = "rawV_div";
	}
	if(f_name == "raw_audio"){
		cb_obj    = document.raw_audio;
		cb_ne     = "next2";
		cb_pr     = "prev2";
		cb_div_id = "rawA_div";
	}
	if(f_name == "precious_video"){
		cb_obj    = document.precious_video;
		cb_ne     = "next3";
		cb_pr     = "prev3";
		cb_div_id = "preciousV_div";
	}
	if(f_name == "precious_audio"){
		cb_obj    = document.precious_audio;
		cb_ne     = "next4";
		cb_pr     = "prev4";
		cb_div_id = "preciousA_div";
	}
	if(f_name == "energy_Video"){
		cb_obj    = document.energy_Video;
		cb_ne     = "next5";
		cb_pr     = "prev5";
		cb_div_id = "energyV_div";
	}
	if(f_name == "energy_audio"){
		cb_obj    = document.energy_audio;
		cb_ne     = "next6";
		cb_pr     = "prev6";
		cb_div_id = "energyA_div";
	}
	if(f_name == "geo_video"){
		cb_obj    = document.geo_video;
		cb_ne     = "next7";
		cb_pr     = "prev7";
		cb_div_id = "geoV_div";
	}
	if(f_name == "geo_audio"){
		cb_obj    = document.geo_audio;
		cb_ne     = "next8";
		cb_pr     = "prev8";
		cb_div_id = "geoA_div";
	}
	if(f_name == "jim_audio"){
		cb_obj    = document.jim_audio;
		cb_ne     = "next9";
		cb_pr     = "prev9";
		cb_div_id = "jimA_div";
	}
	val   =		Number(cb_obj.val.value);
	
	broad =		cb_obj.broad.value;

	if(link_type == "next")
	{
		document.getElementById(cb_ne).style.display = 'block';
		document.getElementById(cb_pr).style.display = 'block';
		if(val == 100){
			document.getElementById(cb_ne).style.display = 'none';
			return false;
		}
	val = val+5;
	
	}
	else  if(link_type == "prev"){
		
		document.getElementById(cb_ne).style.display = 'block';
		if(val < 5){
			document.getElementById(cb_pr).style.display = 'none';
			val = 0;
			return false;
		}else {
			val = val-5;
		}
	}else{ 
		document.getElementById(cb_pr).style.display = 'none';
	}
	url = "broadcast_process.php?val="+val+"&broad="+broad;
 	

	
	cb_xmlHttp.open("GET",url,true);
	cb_xmlHttp.onreadystatechange = cb_stateChanged;
	cb_xmlHttp.send(null);
	return true;
}

function cb_stateChanged() {
	if (cb_xmlHttp.readyState==4 || cb_xmlHttp.readyState=="complete"){
		var result = cb_xmlHttp.responseText;
        	if(result != ""){
			cb_obj.val.value   = val;
	   		cb_obj.broad.value = broad;
          	}
	document.getElementById(cb_div_id).innerHTML=result; 
	} 
} 

function cb_GetXmlHttpObject(){
	var objXMLHttp=null
	if (window.XMLHttpRequest){
		objXMLHttp=new XMLHttpRequest()
	}
	else if (window.ActiveXObject){
		objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
	}
	return objXMLHttp
}