function onSearch()
{ 
   var strSearch = "q="+form.fid.value.substring(2);  
  
   if(form.ddlProvince.value.length > 1){
	    strSearch += "&pid=" + form.ddlProvince.value;     
   }
   else{
    	 strSearch += "&pid="; 
   }
   if(form.ddlCity.value.length > 1){
	    strSearch += "&cid=" + form.ddlCity.value;
   }
   else{
	strSearch += "&cid=";
	}
   if(form.ComMode.value.length > 1){
	    strSearch += "&mid=" +  form.ComMode.value;
   }
   else{
		 strSearch += "&mid=";
	}
   if(form.ddlProvince.value.length>1 || form.ddlCity.value.length>1 || form.ComMode.value.length>1)
   {
		var act;
		var from = form.fid.value.substring(0,1);
		 if(from == 1)
			 act = "http://trade.bfjieju.com/search_biz.aspx?f=1&";
		 if(from == 2)
			 act = "http://trade.bfjieju.com/search_biz.aspx?f=2&";
		 if(from == 3)
			 act = "http://trade.bfjieju.com/search_biz.aspx?f=3&";
		 if(from == 4)
			 act = "http://trade.bfjieju.com/search_biz.aspx?f=4&";
		 if(from == 5)
			 act = "http://pro.bfjieju.com/search_pro.aspx?";
		 if(from == 6)
			act = "http://b2b.bfjieju.com/search_com.aspx?";
		 form.target="frame_list";
		 form.action=act+strSearch;	
		 form.submit();		 
	}else{
		alert('请至少选择一个条件查询！');
	}
	return false;
}
function URLencode(sStr) 
{
	return escape(sStr);
}