function changePrice(district, AreaObj,district2)
{ if (district2 != "日租公寓") {
  for (i = 0; i < AreaObj.options.length; i++)
	{ AreaObj.options[i] = null; }
		AreaObj.length = 0;
	switch (district) { 
	case "": 
		AreaObj.add(new Option("-价格不限-", "")); 
		AreaObj.options[0].selected = true; 
		break; 
	case "出租":
	    AreaObj.add(new Option("租金 元/月",""));
		AreaObj.add(new Option("500以下","0"));
		AreaObj.add(new Option("500-1000","500"));
		AreaObj.add(new Option("1000-1500","1000"));
		AreaObj.add(new Option("1500-2000","1500"));
		AreaObj.add(new Option("2000-2500","2000"));
		AreaObj.add(new Option("2500-3000","2500"));
		AreaObj.add(new Option("3000-4000","3000"));
		AreaObj.add(new Option("4000-5000","4000"));
		AreaObj.add(new Option("5000-8000","5000"));
		AreaObj.add(new Option("8000-10000","8000"));
		AreaObj.add(new Option("10000以上","10000"));
	    break;
        case "求租":
	    AreaObj.add(new Option("租金 元/月",""));
		AreaObj.add(new Option("500以下","0"));
		AreaObj.add(new Option("500-1000","500"));
		AreaObj.add(new Option("1000-1500","1000"));
		AreaObj.add(new Option("1500-2000","1500"));
		AreaObj.add(new Option("2000-2500","2000"));
		AreaObj.add(new Option("2500-3000","2500"));
		AreaObj.add(new Option("3000-4000","3000"));
		AreaObj.add(new Option("4000-5000","4000"));
		AreaObj.add(new Option("5000-8000","5000"));
		AreaObj.add(new Option("8000-10000","8000"));
		AreaObj.add(new Option("10000以上","10000"));
	    break;
        case "合租":
	    AreaObj.add(new Option("租金 元/月",""));
		AreaObj.add(new Option("500以下","0"));
		AreaObj.add(new Option("500-1000","500"));
		AreaObj.add(new Option("1000-1500","1000"));
		AreaObj.add(new Option("1500-2000","1500"));
		AreaObj.add(new Option("2000-2500","2000"));
		AreaObj.add(new Option("2500-3000","2500"));
		AreaObj.add(new Option("3000-4000","3000"));
		AreaObj.add(new Option("4000-5000","4000"));
		AreaObj.add(new Option("5000-8000","5000"));
		AreaObj.add(new Option("8000-10000","8000"));
		AreaObj.add(new Option("10000以上","10000"));
	    break;
	case "出售":
        AreaObj.add(new Option("价格 万/套",""));
		AreaObj.add(new Option("10万以下","0"));
		AreaObj.add(new Option("10－20万","10"));
		AreaObj.add(new Option("20－30万","20"));
		AreaObj.add(new Option("30－40万","30"));
		AreaObj.add(new Option("40－50万","40"));
		AreaObj.add(new Option("50－60万","50"));
		AreaObj.add(new Option("60－70万","60"));
		AreaObj.add(new Option("70－80万","70"));
		AreaObj.add(new Option("80－90万","80"));
		AreaObj.add(new Option("90－100万","90"));
		AreaObj.add(new Option("100万以上","100"));
	    break;
        case "求购":
        AreaObj.add(new Option("价格 万/套",""));
		AreaObj.add(new Option("10万以下","0"));
		AreaObj.add(new Option("10－20万","10"));
		AreaObj.add(new Option("20－30万","20"));
		AreaObj.add(new Option("30－40万","30"));
		AreaObj.add(new Option("40－50万","40"));
		AreaObj.add(new Option("50－60万","50"));
		AreaObj.add(new Option("60－70万","60"));
		AreaObj.add(new Option("70－80万","70"));
		AreaObj.add(new Option("80－90万","80"));
		AreaObj.add(new Option("90－100万","90"));
		AreaObj.add(new Option("100万以上","100"));
	    break;
        case "转让":
        AreaObj.add(new Option("价格 万/套",""));
		AreaObj.add(new Option("10万以下","0"));
		AreaObj.add(new Option("10－20万","10"));
		AreaObj.add(new Option("20－30万","20"));
		AreaObj.add(new Option("30－40万","30"));
		AreaObj.add(new Option("40－50万","40"));
		AreaObj.add(new Option("50－60万","50"));
		AreaObj.add(new Option("60－70万","60"));
		AreaObj.add(new Option("70－80万","70"));
		AreaObj.add(new Option("80－90万","80"));
		AreaObj.add(new Option("90－100万","90"));
		AreaObj.add(new Option("100万以上","100"));
	    break;
        case "日租公寓":
        AreaObj.add(new Option("价格 元/日",""));
		AreaObj.add(new Option("10元以下","0"));
		AreaObj.add(new Option("10－40元","10"));
		AreaObj.add(new Option("40－70元","40"));
		AreaObj.add(new Option("70－100元","70"));
		AreaObj.add(new Option("100－130元","100"));
		AreaObj.add(new Option("130－160元","130"));
		AreaObj.add(new Option("160－190元","160"));
		AreaObj.add(new Option("190－220元","190"));
		AreaObj.add(new Option("220－250元","220"));
		AreaObj.add(new Option("250－280元","250"));
		AreaObj.add(new Option("280－310元","280"));
                AreaObj.add(new Option("310元以上","310"));
	    break;
        default:
            changePrice(district2,AreaObj,district2);
	}
}
}
function changeUnit(district,sign)
{ 
	switch (district) { 
        case "日租公寓":
             if (!sign){document.all["a"].innerHTML = "元/天"}
	break;
        default:
             if (sign){document.all["a"].innerHTML = "万/套"}
             else{document.all["a"].innerHTML = "元/月"}
	}
}