<script>
function init(obj){
for(var i=0;i<document.all.test.options.length;i++){
if(document.all.test.options[i].value==obj){
document.all.test.selectedIndex=i;
return;
}
}
}
</script><body onload="init('00002')">
<select name="test">
<option value="00001">test1</option>
<option value="00002">test2</option>
<option value="00003">test3</option>
</select>
</body>
function init(obj){
for(var i=0;i<document.all.test.options.length;i++){
if(document.all.test.options[i].value==obj){
document.all.test.selectedIndex=i;
return;
}
}
}
</script><body onload="init('00002')">
<select name="test">
<option value="00001">test1</option>
<option value="00002">test2</option>
<option value="00003">test3</option>
</select>
</body>
<head>
<script language=javascript>
function posSelect()
{
var char = "00002";
var size = document.all.test.options.length;
var i = 0;
for(;i<size;i++){
if(document.all.test.options[i].value == char){
document.all.test.options[i].selected = true;
break;
}
}
}
</script>
</head>
<body>
<center>
<table width="340" border="0" cellspacing="0" cellpadding="0">
<tr>
<td>
<select name="test">
<option value="00001">test1</option>
<option value="00002">test2</option>
<option value="00003">test3</option>
</select>
<input name="position" value="position" type="button" onClick="posSelect();">
</td>
</tr>
</table>
</center>
</body>
</html>
<option value="00001">test1</option>
<option value="00002">test2</option>
<option value="00003">test3</option>
</select>
<button onclick="JavaScript:test.value='00002';">测试</button>