function showZone(id, flag) {
    if (flag) {
        eval("document.all." + id + ".style.display = ''");
    } else {
        eval("document.all." + id + ".style.display = 'none'");
    }
}

function showSearch(flag) {
    if (flag == "zf") {
        document.all.zfSearch.style.display = "";
        document.all.esfSearch.style.display = "none";
        document.all.zf01.width = "63";
        document.all.zf01.background = "http://images.china-house.com/web/0592/center_ss_01.gif";
        document.all.zf01.className = "no";
        document.all.zf02.className = "red";
        document.all.esf01.width = "54";
        document.all.esf01.background = "http://images.china-house.com/web/0592/center_ss_02.gif";
        document.all.esf01.className = "t1 no";
        document.all.esf02.className = "";
        document.all.esf02.innerHTML = "二手房";
        document.all.zf02.innerHTML = "<strong>租房</strong>";
    } else if (flag == "es") {
        document.all.esf01.width = "63";
        document.all.esf01.background = "http://images.china-house.com/web/0592/center_ss_01.gif";
        document.all.esf01.className = "no";
        document.all.esf02.className = "red";
        document.all.zf01.width = "54";
        document.all.zf01.background = "http://images.china-house.com/web/0592/center_ss_02.gif";
        document.all.zf01.className = "t1 no";
        document.all.zf02.className = "";
        document.all.esfSearch.style.display = "";
        document.all.zfSearch.style.display = "none";
        document.all.esf02.innerHTML = "<strong>二手房</strong>";
        document.all.zf02.innerHTML = "租房";
    }
}

/**
 * 菜单转向
 */
function sendUrl(url, id) {
  modify_Headmenu(id);
  if (id==10){
  	window.open(url);
  }else{
  	location.href = url;
  }
}

/**
 * 修改菜单样式
 */
function modify_Headmenu(id) {
    for(var i = 2; i <= 10; i++) {
          document.getElementById("Headmenu" + i ).className = "";
    } 
    document.getElementById("Headmenu" + id).className = "blue2 strong";
}

/**
 *
 */
function defaultKey(obj) {
    if (obj.value == "小区地址或名称" || obj.value == "房源信息号搜索") {
        obj.value = "";
    }
    obj.select(); 
}

/**
 * 只能输入实数
 */ 
function FloatKeyPress() {
    if((event.keyCode<48 || event.keyCode>57) && event.keyCode!=46)
	    event.keyCode=0;
}

/**
 * 判断参数是否为数值(含整型和浮点型)类型
 */
function isFloat(str) {
   if(!isNaN(str)) {
      return true;
	} else {
	   return false;   
	}
}

function CheckIsNumeric(obj,msg) {
	var reg=/^\d+(\.\d+)?$/
	if(obj.value!=""){
	 if(!reg.exec(obj.value)) {
		alert(msg);
		obj.focus();
		return false;
	 }
   }
   return true;
}

/**
 * 获取对象在页面的高度位置
 *
 */
function getAbsoluteOffsetTop(obj) {
  var top = obj.offsetTop;
  var parent = obj.offsetParent;
  while (parent != document.body) {
   top += parent.offsetTop;
   parent = parent.offsetParent;
  }
  return top;
}