function goPage(start,media_type){
	if(start>=0){
		result = GetAjaxResponseText("/include/mainContents.php?current_page="+start+"&media_type="+media_type);
		document.getElementById("main"+media_type).innerHTML = result;
	}
}

function main_channel_list(start,idx){
	if(start>=0){
		result = GetAjaxResponseText("/include/main_station_channel_list.html?current_page="+start+"&idx="+idx);
		document.getElementById("main_station_channel_list").innerHTML = result;
	}
}