function showDistrict(territory, default_district)
{ 
xmlHttp=GetXmlHttpObject()
var url="/cgi-bin/pg/index.cgi?action=showDistrict&default="+default_district+"&territory="+territory;
xmlHttp.onreadystatechange=stateChanged 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}


function stateChanged() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
{ 
document.getElementById('district').innerHTML=xmlHttp.responseText 
} 
} 

function GetXmlHttpObject()
{ 
var objXMLHttp=null
if (window.XMLHttpRequest)
{
objXMLHttp=new XMLHttpRequest()
}
else if (window.ActiveXObject)
{
objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
}
return objXMLHttp
}


function change_price_unit(value){
	
	if (value == 2)	{
		document.getElementById('price_title').innerHTML = '叫價：';
		document.getElementById('price_unit').innerHTML = '元以下  ';
	} else	{
		document.getElementById('price_title').innerHTML = '售價：';
		document.getElementById('price_unit').innerHTML = '萬元以下';
	}		
}

function toggleObjectDisplay(objectId){
	var o = getStyleObject(objectId);
  if(o) {
	  if (o.display != 'block'){
	    o.display = 'block'; 
	  } else {
	  	o.display = 'none';
	  }
	  return true;
  } else {
	  return false;
  } 
}


function getStyleObject(objectId) {
    // cross-browser function to get an object's style object given its id
    if(document.getElementById && document.getElementById(objectId)) {
	// W3C DOM
	return document.getElementById(objectId).style;
    } else if (document.all && document.all(objectId)) {
	// MSIE 4 DOM
	return document.all(objectId).style;
    } else if (document.layers && document.layers[objectId]) {
	// NN 4 DOM.. note: this won't find nested layers
	return document.layers[objectId];
    } else {
	return false;
    }
} // getStyleObject