asp有象VB的combo控件一样的可以手动修改内容的下拉框码？

if (pos>=1)

{

var intVer=parseInt(curVer.charAt(pos+5));

if (intVer>=5)

{ isBadVersion=false;}

}

if (isBadVersion)

{

var msg="This page may not be displayed properly:\n"+

" This product requires Microsoft Internet Explorer 5 or later browser only.";

alert(msg);

}

}

//check the browser version

checkVersion();

// the array of comboBoies

theArray = new Array();

function combobox(objId, objHandler)

{

this.comObj = document.all[objId];

this.comObj.selectedIndex = -1;

this.getValue = getValue;

this.doResize = doResize;

this.doChange = doChange;

this.loseFocus = loseFocus;

this.doSelectIdx = doSelectIdx;

this.focus = focus;

var strMsg="";

//------------------------------------------------------------------------------------------------------