function getValue(objName,type){//获取对象的数值{
	if (document.getElementById(objName)){
		var exec="var val=document.getElementById(\""+objName+"\")."+type+";";
		eval(exec);
		return val;
	} else {
		return "";
	}
}

function isNull(object){//判断字符是否没有输入
	var vr=document.getElementById(object).value;
	if(vr.replace(/^\s*/,'').replace(/\s*$/,'')=="")
		return true;
	else
		return false;
}

function isEmpty(v){//判断输入的数据为空与否
	return (v=="")?true:false;
}

function isPoint(v){//判断数据是否为纯数值或小数
	var fl="0123456789.";
	var chars="";
	if (isEmpty(v)) return false;
	for(var i=0;i<v.length;i++)
	{
		chars=v.substring(i,i+1);
		if (fl.indexOf(chars)==-1)
		{
			return false;
			break;
		}
	}
	return true;
}

function setFocus(object,t)//设置为焦点或选择
{
	if(t==2)
		$(object).select();
	else
		$(object).focus();
}

function searchKey(){
						//alert(getValue("sURL","value"));
					  var Url=getValue("sURL","value");
					  var sr="?w=1";
					  sr+="&qy="+getValue("qy","value");
					  sr+="&search_F="+getValue("search_F","value");
					  sr+="&search_T="+getValue("search_T","value");
					  sr+="&search_W="+getValue("search_W","value");
					  sr+="&search_Y="+getValue("search_Y","value");
					  sr+="&search_lx="+getValue("search_lx","value");
					  sr+="&MjMin="+getValue("MjMin","value");
					  sr+="&MjMax="+getValue("MjMax","value");
					  sr+="&JgMin="+getValue("JgMin","value");
					  sr+="&JgMax="+getValue("JgMax","value");
					  sr+="&xq="+getValue("xq","value");
					  if (!isNull("MjMin")&&!isPoint(getValue("MjMin","value"))){
							alert("对不起，无效的面积数据，要求输入数字？");setFocus("MjMin",1);return false;}
					  if (!isNull("MjMax")&&!isPoint(getValue("MjMax","value"))){alert("对不起，无效的面积数据，要求输入数字？");setFocus("MjMin",1);return false;}
					  if (parseFloat(getValue("MjMin","value"))>parseFloat(getValue("MjMax","value"))){alert("最小面积大于最大面积,请重新输入!");setFocus("MjMin",1);return false;}
					  if (!isNull("JgMin")&&!isPoint(getValue("JgMin","value"))){alert("对不起，无效的价格数据，要求输入数字？");setFocus("JgMin",1);return false;}
					  if (!isNull("JgMax")&&!isPoint(getValue("JgMax","value"))){alert("对不起，无效的价格数据，要求输入数字？");setFocus("JgMax",1);return false;}
					  if (parseFloat(getValue("JgMin","value"))>parseFloat(getValue("JgMax","value"))){alert("最小面积大于最大面积,请重新输入!");setFocus("MjMin",1);return false;}
					  location.href=Url+sr;
					  return false;
				  }