var req=null;

function initRequest(){
var xRequest=null;
if (window.XMLHttpRequest){
xRequest=new XMLHttpRequest();
} else if (window.ActiveXObject){
xRequest=new ActiveXObject("Microsoft.XMLHTTP");
}
return xRequest;
}
///////////////////////////////////////////////////////
function open_page(url){
	req=initRequest();
	if (req){
	req.onreadystatechange=onChangeState_Menu;
	req.open("POST",url,true);
	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	req.send(url);
	}
	return false;
}

function onChangeState_Menu(){
	if (req.readyState==4){
		
	document.getElementById("dvMain").innerHTML=req.responseText;
	}else{
	document.getElementById("dvMain").innerHTML='<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0" width="25" height="25" id="wait" align="middle">' + 
	'<param name="allowScriptAccess" value="sameDomain"/>'+
	'<param name="movie" value="Flash/wait.swf" /><param name="quality" value="high" /><param name="bgcolor" value="#ffffff" /><embed src="Flash/wait.swf" quality="high" bgcolor="#ffffff" width="25" height="25" name="wait" align="middle" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />'+
	'</object>'
	}
}
///////////////////////////////////////////////////////