function ckaddresidence()
{
	if (addresidence.res_head.value.length >= "20"  ){alert( "請輸入 標題字數限制為 15個中文字 (包含 標點符號)" );addresidence.res_head.focus();return false;}	
	if (addresidence.res_conname.value == "" ){alert( "請輸入 聯絡人" );addresidence.res_conname.focus();return false;}	
if (addresidence.res_pwd.value == "" ){alert( "請輸入 使用者密碼" );addresidence.res_pwd.focus();return false;}	
if (addresidence.res_contel.value == "" ){alert( "請輸入 聯絡電話" );addresidence.res_contel.focus();return false;}	
if (addresidence.res_conmail.value == "" ){alert( "請輸入 電子郵件信箱\n此為發送認證信件之方式\n請確實填寫\n您可以收到的電子郵件信箱" );addresidence.res_conmail.focus();return false;}	
if (addresidence.res_conmail.value !="" && addresidence.res_conmail.value.indexOf ("@")== -1 ){alert("[ 電子郵件信箱 ] \n格式有誤!!");addresidence.res_conmail.focus();return false;}


if (addresidence.res_kind.value == "" ){alert( "請輸入 型式" );addresidence.res_kind.focus();return false;}	
if (addresidence.res_head.value == "" ){alert( "請輸入 標題" );addresidence.res_head.focus();return false;}	
if (addresidence.res_region.value == "" ){alert( "請輸入 區域" );addresidence.res_region.focus();return false;}	
if (addresidence.res_city.value == "" ){alert( "請輸入 鄉鎮" );addresidence.res_city.focus();return false;}	
if (addresidence.res_addrs.value == "" ){alert( "請輸入 地址" );addresidence.res_addrs.focus();return false;}	
if (addresidence.res_ground.value == "" ){alert( "請輸入 建物面積" );addresidence.res_ground.focus();return false;}	
if (addresidence.res_ground.value!=""){
		if (isNaN(addresidence.res_ground.value.valueOf()) )  
		{	alert("使用建物面積請輸入數字!!!!");
 			addresidence.res_ground.focus();return false;   }
 		} 

if (addresidence.res_talcost.value == "" ){alert( "請輸入 總售價" );addresidence.res_talcost.focus();return false;}	
if (addresidence.res_talcost.value!=""){
		if (isNaN(addresidence.res_talcost.value.valueOf()) )  
		{	alert("使用總售價請輸入數字!!!!");
 			addresidence.res_talcost.focus();return false;   }
 		} 

 		
	}