怎么获取我这个子级中元素的值？

var businessNo ="<input type='checkbox'  name='checkBoxList' id='dhdh' onclick='chkClick()' value="+data.businessNo+">" +"<a class='qipao'   href= "#\" title= '" + data.riskCode + "'  onclick=\"editRecordCheck('" + contextRootPath + "/underwriting/initUnderwriting.do?processId=" + data["wfbCommon"].processId + "&operatorCode=" + data.operatorCode + "&queryType=0&taskId=" + data["wfbCommon"].taskId + "&wbcmainId=" + data["wfbCommon"].id + "&businessNo=" + data.businessNo + "&state=" + data.state + "&curNode=" + data.curNode + "&taskType=" + data.taskType + "&businessType=" + data.businessType +"&flagquery=unoccupied')\">" + data.businessNo +"</a >"+"</input>";