function divChangeHTMLByURL( url, method, idName ){
	var xmlHttp;
	url = url +'&force_cache='+Math.random() ;
	try{
		// Firefox, Opera 8.0+, Safari
		xmlHttp = new XMLHttpRequest();
	}catch (e){
		// Internet Explorer
		try{
			xmlHttp = new ActiveXObject( "Msxml2.XMLHTTP" );
		}catch ( ee ){
			try{
				xmlHttp = new ActiveXObject( "Microsoft.XMLHTTP" );
			}catch( eee ){
				alert( "Your browser does not support AJAX!" );
				return false;
			}
		}
	}
	xmlHttp.onreadystatechange = function(){
		if( xmlHttp.readyState == 4 ){
			element = document.getElementById( idName );
			if( element != null ){
				element.innerHTML = xmlHttp.responseText ;
			}
		}
	}
	xmlHttp.open( method == null? "GET": method, url, true );
	xmlHttp.send( null );
}