var dispNum = 0;
var dispNumEnd = 0;
var url="sim/sim.php";

/*window.onload=function()
{
	new Ajax.Updater("sim",url,{method:"get"});
}*/

function getPage(Obj) {
	dispNum = Obj.name;
	document.getElementById("sim"+dispNum).innerHTML = "<img src=\"sim/loader.gif\" style=\"margin-left:20px\"/>";
	if(dispNumEnd <= dispNum){
		dispNumEnd = dispNum;
	}else{
		i=eval(dispNum)+1;
		for(i; i<7; i++){
			document.getElementById("sim"+i).innerHTML="&nbsp;";
		}
		dispNumEnd = dispNum;
	}	
	xmlhttp = createXMLHttp();
	if (xmlhttp){
		xmlhttp.onreadystatechange = setPageData;
		xmlhttp.open('GET', url+"?val="+Obj.value);
		xmlhttp.send(null);
	}else{
		alert("XMLHttpRequest失敗");
	}
	if(document.documentElement.scrollHeight){
		window.scrollBy(0,document.documentElement.scrollHeight);
	}
}

function setPageData() {
	if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
		document.getElementById("sim"+dispNum).innerHTML = xmlhttp.responseText;
	}
}

// XMLHttpsオブジェクト作成
function createXMLHttp() {
	try {
		return new ActiveXObject ("Microsoft.XMLHTTP");
	}catch(e){
		try {
			return new XMLHttpRequest();
		}catch(e) {
			return null;
		}
	}
	return null;
}