js取select的text值

<script language="javascript"> function chk(){  var obj = document.getElementById("sel");  var strsel = obj.options[obj.selectedIndex].text;  if (confirm("确定要选择"+strsel+"吗？")){

  }else{

  } }</script><select name="sel" onchange="return chk()"> <option value=1>a001</option> <option value=2>a002</option> <option value=3>a003</option></select>

 

如果是取数值进行计算时：

 function chk(){  var number1 = document.getElementById("n1").value;  var number2 = document.getElementById("n2").value;  var number3 = document.getElementById("n3").value;  var number4 = document.getElementById("n4").value;  var number5 = document.getElementById("n5").value;  var number6 = document.getElementById("n6").value;  var average =(parseInt(number1)+parseInt(number2)+parseInt(number3)+parseInt(number4)+parseInt(number5))*0.5+parseInt(number6)*0.1  if (confirm("确定要选择"+average+"吗？")){

  }else{

  } }</script>