changlist.js

飞机订票系统源代码 飞机订票系统源代码 飞机订票系统源代码

  function aClass(aData, aValue, aText) {
    if (aClass.arguments.length < 3)
      alert("传入的参数错误！")
    else {
      this.Data  = aData;
      this.Value = aValue;
      this.Text  = aText;
    }
  }

  function chgDnCombobox(aSrc, aDes, aClass, aRemain){
    if (chgDnCombobox.arguments.length < 3)
alert("传入的参数错误！")
    else if (aSrc.type != "select-one")
      alert("传入的参数错误！")
    else if (aClass == null)
      alert("aClass未定义错误！")
    else {
      if (aRemain==null)
        aRemain = 1;
      chgDnComboboxItem(aSrc.options[aSrc.selectedIndex].value, aDes, aClass, aRemain);
    }
  }

  function chgDnComboboxItem(aValue, aDes, aClass, aRemain){
    if (chgDnComboboxItem.arguments.length<3)
      alert("参数传入错误！")
    else if (aClass==null)
      alert("错误！aClass没有定义！")
    else{
      if (aRemain==null)
        aRemain = 1;
      deleteAllComboboxItem(aDes, aRemain);
      for (var i=0; i<aClass.length; i++)
        if (aClass[i].Data==aValue)  /* check aClass[i].Data */
          if (aClass[i].Data!="")
            addComboboxItem(aDes, aClass[i].Text, aClass[i].Value);
    }
  }

  function deleteAllComboboxItem(aList, aRemain) {
    for (var i=aList.options.length; i > aRemain-1; i--)
      aList.options[i] = null;
  }    

  function addComboboxItem(aList, aText, aValue) {
    var aOption = new Option(aText, aValue);
    eval("aList.options[aList.options.length]=aOption");
  }