jquery mobile动态设置option默认选中

<script type="text/javascript">

$(document).ready(function(){

/*事件注册*/

display();

});

function display(){

/*得到服务器端的原始数据*/

var rb = <?php echo $rb;?>;

var zb = <?php echo $zb;?>;

var yb = <?php echo $yb;?>;

/*得到select标签option选项的集合*/

var dayRep = document.getElementById("dayRep").options;

var weekRep = document.getElementById("weekRep").options;

var mouthRep = document.getElementById("mouthRep").options;

/*让option选项默认选中*/

if(rb==0){

dayRep[0].selected = true;

/*调用 refresh 方法刷新样式*/

var myswitch = $("select#dayRep");

myswitch[0].selectedIndex = 0;

myswitch .slider("refresh");

}else{

dayRep[1].selected = true;

var myswitch = $("select#dayRep");

myswitch[0].selectedIndex = 1;

myswitch .slider("refresh");

}

if(zb==0){

weekRep[0].selected = true;

var myswitch = $("select#weekRep");

myswitch[0].selectedIndex = 0;

myswitch .slider("refresh");

}else{

weekRep[1].selected = true;

var myswitch = $("select#weekRep");

myswitch[0].selectedIndex = 1;

myswitch .slider("refresh");

}

if(yb==0){

mouthRep[0].selected = true;

var myswitch = $("select#mouthRep");

myswitch[0].selectedIndex = 0;

myswitch .slider("refresh");

}else{

mouthRep[1].selected = true;

var myswitch = $("select#mouthRep");

myswitch[0].selectedIndex = 1;

myswitch .slider("refresh");

}

}
</script>