function vote_request(item_id) {
	item_id_global = item_id;
	url = "news/vote_item.php?item_id=" + item_id;
	request = createXMLHttpRequest();
	if(request){
		request.onreadystatechange = check;
		request.open("get", url, true);
		request.send();
	}
}


function check(){
	if(request.readyState == 4 && request.status == 200) {
		if(request.responseText == "1") {
			var item = document.getElementById(String(item_id_global));
			
			var div = item.getElementsByTagName('div');
			for(var i = 0;i < div.length;i++){
				if(div[i].className == 'box01 vote_count'){
					div[i].innerHTML = parseInt(div[i].innerHTML) + 1;
					break;
				}
			}

			var span = item.getElementsByTagName('span');
//			//投票数+1
//			span[0].innerHTML = parseInt(span[0].innerHTML) + 1;
			
			//投票ボタンを無効に
			span[1].innerHTML = '投票済み';
		}
	}
}

function createXMLHttpRequest() {
	var XMLhttpObject = null;
	try{
		XMLhttpObject = new XMLHttpRequest();
	}catch(e){
		try{
			XMLhttpObject = new ActiveXObject("Msxml2.XMLHTTP");
		}catch(e){
			try{
				XMLhttpObject = new ActiveXObject("Microsoft.XMLHTTP");
			}catch(e){
				return null;
			}
		}
	}
	return XMLhttpObject;
}