var xmlHttp;
function GetXmlHttpObject(handler)
{ 
	var objXmlHttp=null;
	if (navigator.userAgent.indexOf("Opera")>=0)
	{
		alert("This example doesn't work in Opera"); 
		return ;
	}
	if (navigator.userAgent.indexOf("MSIE")>=0)
	{ 
		var strName="Msxml2.XMLHTTP";
		if (navigator.appVersion.indexOf("MSIE 5.5")>=0)
		{
			strName="Microsoft.XMLHTTP";
		} 
		try
		{ 
			objXmlHttp=new ActiveXObject(strName);
			objXmlHttp.onreadystatechange=handler ;
			return objXmlHttp;
		} 
		catch(e)
		{ 
			alert("Error. Scripting for ActiveX might be disabled") ;
			return ;
		} 
	} 
	if (navigator.userAgent.indexOf("Mozilla")>=0)
	{
		objXmlHttp=new XMLHttpRequest();
		objXmlHttp.onload=handler;
		objXmlHttp.onerror=handler; 
		return objXmlHttp;
	}
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////	
		function showcat()
		{
			
			
			var sheet = document.frmreservation.partySize.value;	
			if(sheet=="more")
				{
				var url="show_more.php";
				}
			else
				{
					var url="show_nothing.php";
				}
			xmlHttp=GetXmlHttpObject(gsubcategory);
			xmlHttp.open("GET",url,true);
			xmlHttp.send(null);
		}
		
		function gsubcategory()
		{
			if (xmlHttp.readyState == 4 || xmlHttp.readyState=="complete")
			{
				//alert (xmlHttp.responseText);
				document.getElementById("first").innerHTML= xmlHttp.responseText;
			}
		}

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////	
		function showbrand()
		{
			subcategory="subcategory";
			subcategory=document.getElementById(subcategory);
			subcategory=subcategory.options[subcategory.selectedIndex].value;
			if(subcategory==-1){return;}//state=document.f1.RESIDINGSTATE.options[RESIDINGSTATE.selectedIndex].value;
			var url="showbrand.php?subcatid="+subcategory;			
			xmlHttp=GetXmlHttpObject(gbrand);
			xmlHttp.open("GET",url,true);
			xmlHttp.send(null);
		}
		
		function gbrand()
		{
			if (xmlHttp.readyState == 4 || xmlHttp.readyState=="complete")
			{
				//alert (xmlHttp.responseText);
				document.getElementById("branddiv").innerHTML= xmlHttp.responseText;
			}
		}
		

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////	
		function showarea()
		{
			city="city";
			city=document.getElementById(city);
			city=city.options[city.selectedIndex].value;
			if(city==-1){return;}//state=document.f1.RESIDINGSTATE.options[RESIDINGSTATE.selectedIndex].value;
			var url="showarea.php?cityid="+city;			
			xmlHttp=GetXmlHttpObject(area);
			xmlHttp.open("GET",url,true);
			xmlHttp.send(null);
		}
		
		function area()
		{
			if (xmlHttp.readyState == 4 || xmlHttp.readyState=="complete")
			{
				//alert (xmlHttp.responseText);
				document.getElementById("areadiv").innerHTML= xmlHttp.responseText;
			}
		}