매개변수에 '따옴표 처리를 하지않아 변수정의가 되지않았었다.
for(var i in rList){
str += "<tr><td width='100'>" + rList[i].replyWriter + "</td>"
str += "<td>" + rList[i].replyContents + "</td>"
str += "<td>" + rList[i].rUpdateDate + "</td>"
str += "<td><a href='javascript:void(0);' onclick='modifyReply(this,\""+rList[i].replyContents+"\","+rList[i].replyNo+")'>수정</a>/"
str += "<a href='javascript:void(0);' onclick='removeReply(this,\""+rList[i].replyWriter+"\","+rList[i].replyNo +")'>삭제</a></td></tr>"
}
$("#rtb").html(str);