function chksearch(theForm)
{
	if(theForm.JobArea.value == "")
	{
		alert("城市没有选择！");
		return false;
	}
	else{
		return true;
	}
}

function GetOpID(ObjName)
{ for ( var ObjID=0; ObjID < document.Form1.elements.length; ObjID++ )
      if (document.Form1.elements[ObjID].name == ObjName )
      {  return(ObjID);
         break;
      }
  return(-1);
}

function ChangeOptionForSearch(ObjName, DesName)
{
  //GET OBJECT VALUE, ID OF DESTINATION OBJECT
  ObjID    = GetOpID(ObjName);
  DesObjID = GetOpID(DesName);
  //CLEAR OLD OPTIONS
  document.Form1.elements[DesObjID].length= 0;
  //Add NEW OPTIONS
  if ( ObjID != -1 && DesObjID != -1 )
  {  CatValue = document.Form1.elements[ObjID].value.substring(0, 2);
     if ( CatValue == "00" )
        document.Form1.elements[DesObjID].length=0;
     else
     {  //PARSING
        if ( ObjName == "AreaCat")
           var tt = document.Form1.AreaCode.value;
        else
           var tt = document.Form1.FuncCode.value;
        var SubCategory = tt.split(";");
        //GENERATE OPTIONS
        j=0;
        for (var i=0; i< SubCategory.length; i++ )
        {   pp = SubCategory[i].split(",");
            if ( pp[0].substring(0,2) == CatValue && pp[0].substring(2,4) != "00" )
            {  document.Form1.elements[DesObjID].options[j]= new Option( pp[1], pp[0]);
               j++;
            }//if
        }//for
     }//if
  }//if
}//function