日期:2014-05-16 浏览次数:20571 次
<html>
<head>
<script type="text/javascript">
function clickSel() {
var sel1 = document.getElementById("sel1");
var sel2 = document.getElementById("sel2");
var sel3 = document.getElementById("sel3");
sel2.selectedIndex = sel3.selectedIndex = sel1.selectedIndex;
sel2.onfocus = function() {
var index = this.selectedIndex;
this.onchange = function() {
this.selectedIndex = index;
};
};
}
</script>
</head>
<body>
<select id="sel1" onchange="clickSel()">
<option>opts1</option>
<option>opts2</option>
<option>opts3</option>
<option>opts4</option>
<option>opts5</option>
<option>opts6</option>
</select>
<select id="sel2">
<option>opts1</option>
<option>opts2</option>
<option>opts3</option>
<option>opts4</option>
<option>opts5</option>
<option>opts6</option>
</select>
<select id="sel3">
<option>opts1</option>
<option>opts2</option>
<option>opts3</option>
<option>opts4</option>
<option>opts5</option>
<option>opts6</option>
</select>
</body>
</html>