function GLPoint()
{
if(document.getElementById("citycode").value ==""){
 alert("请选择行政区！");
	  return false;
}else{
  var Frompoint;
  Frompoint=document.getElementById("txtSurr").value;
  if (Frompoint=="" || Frompoint=="输入中心位置") {
    if (document.getElementById("txtSearch").value=="" || document.getElementById("txtSearch").value=="输入查询关键字") 
     {
	  alert("输入查询关键字！");
	  return false;
     }
     else{
      var loc="map.aspx?type=point&Region="+ encodeURIComponent(document.getElementById("citycode").value );
      loc+="&K="+ encodeURIComponent(document.getElementById("txtSearch").value );
      loc+="&name="+ encodeURIComponent(document.getElementById("region").value );
    //  alert(loc);
     // this.location=loc;
      document.getElementById("Form1").action=loc;
	  document.getElementById("Form1").submit();
  }
 }else{
  var loc="map.aspx?D=1000&type=surr";	
      loc+="&Region="+ encodeURIComponent(document.getElementById("citycode").value );
      loc+="&F="+ encodeURIComponent(Frompoint);
      loc+="&K="+ encodeURIComponent(document.getElementById("txtSearch").value );
      loc+="&name="+ encodeURIComponent(document.getElementById("region").value );
     //  alert(loc);
      //this.location=loc;
     document.getElementById("Form1").action=loc;
	 document.getElementById("Form1").submit();
 }
}
 
}
								
			function QueryRoad()
			{
			if(document.getElementById("citycode").value ==""){
              alert("请选择行政区！");
	        return false;
             }else
			{
			var Frompoint;
				var Topoint;
				
			    Frompoint=document.getElementById("txtFrom").value;
				Topoint=document.getElementById("txtTo").value;
					
				if (Frompoint=="" || Topoint=="") 
					{
					alert("请输入起点和终点！");	
					return false;
					}		
				
				var loc="map.aspx?Query=0&type=road";
				loc+="&Region="+ encodeURIComponent(document.getElementById("citycode").value );
				loc+="&F="+encodeURIComponent(Frompoint);
				loc+="&T="+encodeURIComponent(Topoint);
			    loc+="&name="+ encodeURIComponent(document.getElementById("region2").value );
			 //    alert(loc);
				//this.location=loc;
				document.getElementById("Form1").action=loc;
				document.getElementById("Form1").submit();
			}
			}
			
			function QueryBus()
			{
			if(document.getElementById("citycode").value ==""){
             alert("请选择行政区！");
	        return false;
             }else
			{
				var Frompoint;
				var Topoint;
				
				Frompoint=document.getElementById("txtStartStation").value;
				Topoint=document.getElementById("txtEndStation").value;
				if (Frompoint=="" || Topoint=="") 
				{
				alert("请输入起点和终点！");
				return false;
				}
				
				var loc="map.aspx?Query=0&type=bus";
				loc+="&Region="+ encodeURIComponent(document.getElementById("citycode").value );
				loc+="&F="+encodeURIComponent(Frompoint);
				loc+="&T="+encodeURIComponent(Topoint);
			    loc+="&name="+ encodeURIComponent(document.getElementById("region1").value );
			  //  alert(loc);
				//this.location=loc;
				document.getElementById("Form1").action=loc;
				document.getElementById("Form1").submit();
			}}
			
			//公交线路
function QueryBusLine(qrym)
{
	var BusLine;
	
	if (qrym==0)
	{
		BusLine=document.getElementById("txtBusLine").value;
		if (BusLine=="")
		{
		alert("请输入公交线路！");
		return false;
		}
	}
	else
	{
		BusLine=document.getElementById("txtBusLine").value;
		if (BusLine=="")
		{
		alert("请输入公交线路！");
		return false;
		}
	}
	
	var loc="map.aspx?type=bus&Query="+qrym;
	loc+="&Region="+ encodeURIComponent(document.getElementById("citycode").value );
	loc+="&L="+encodeURIComponent(BusLine);
	//this.location=loc;
	document.getElementById("Form1").action=loc;
	document.getElementById("Form1").submit();
}
			
//将缺省的字去掉
function cleardefault(txtname,txtdefault)
{
	var objtxt;
	objtxt=document.getElementById(txtname);
	if (objtxt.value==txtdefault)
	objtxt.value=""; 
	return true;
}	
			function EnterPress(mode)
			{
				if (event.keyCode==13)
				{
					switch(mode)
					{
					case 1:
						GLPoint();
						break;
					case 3:
						QueryRoad();
						break;
					case 4:
						QueryBus();
						break;
					case 5:
						QueryBusLine(1);
						break;
					}
					return false ;
				}
			}