function ChangeArea(selectedIndex,FromObject)
{
	
  if ( selectedIndex == 0 )
  {
	FromObject.options.length = 0
	FromObject.options[0]=new Option("不限", "不限"); 
  }
  
  if ( selectedIndex == 1 )
  {
	FromObject.options.length = 0
	
    FromObject.options[0]=new Option("不限", "不限"); 
    FromObject.options[1]=new Option("市区", "市区");
    FromObject.options[2]=new Option("官湖镇", "官湖镇"); 
    FromObject.options[3]=new Option("戴庄镇", "戴庄镇");
    FromObject.options[4]=new Option("岔河镇", "岔河镇");
    FromObject.options[5]=new Option("新河镇", "新河镇"); 
    FromObject.options[6]=new Option("土山镇", "土山镇");
    FromObject.options[7]=new Option("八集镇", "八集镇"); 
    FromObject.options[8]=new Option("宿山镇", "宿山镇");
    FromObject.options[9]=new Option("铁富镇", "铁富镇");
    FromObject.options[10]=new Option("四户镇", "四户镇"); 
    FromObject.options[11]=new Option("赵墩镇", "赵墩镇");
    FromObject.options[12]=new Option("占城镇", "占城镇"); 
    FromObject.options[13]=new Option("邳城镇", "邳城镇");
    FromObject.options[14]=new Option("陈楼镇", "陈楼镇");
    FromObject.options[15]=new Option("港上镇", "港上镇"); 
    FromObject.options[16]=new Option("邹庄镇", "邹庄镇");
    FromObject.options[17]=new Option("燕子埠", "燕子埠");
	FromObject.options[18]=new Option("议堂镇", "议堂镇");
	FromObject.options[19]=new Option("炮车镇", "炮车镇");
	FromObject.options[20]=new Option("邢楼镇", "邢楼镇");
	FromObject.options[21]=new Option("其它镇", "其它镇");
	FromObject.options[22]=new Option("运河镇", "运河镇");
  }
  
   if ( selectedIndex == 2 )
  {
	FromObject.options.length = 0
	
    FromObject.options[0]=new Option("不限", "不限"); 
	FromObject.options[1]=new Option("市区", "市区"); 
    FromObject.options[2]=new Option("铜山", "铜山");
    FromObject.options[3]=new Option("沛县", "沛县"); 
    FromObject.options[4]=new Option("丰县", "丰县");
    FromObject.options[5]=new Option("睢宁", "睢宁");
    FromObject.options[6]=new Option("新沂", "新沂"); 
  }
  
  if ( selectedIndex == 3 )
  {
	FromObject.options.length = 0
    FromObject.options[0]=new Option("不限", "不限"); 
    FromObject.options[1]=new Option("周边地区", " "); 
  }
  
   if ( selectedIndex == 4 )
  {
	FromObject.options.length = 0
    FromObject.options[0]=new Option("不限", "不限"); 
    FromObject.options[1]=new Option("外地", " "); 
  }
}