复选框反现

//单个项目</br>投资金额othqualiattach
var othqualiattachObj = document.getElementsByName("othqualiattach");  //获取所有的复选框
     var othqualiattach = '${mvo.othqualiattach}'; //用el表达式获取在控制层存放的复选框的值为字符串类型
if(''!=othqualiattach){
var othqualiattachArr = othqualiattach.split(',');    //去掉它们之间的分割符“，”  
var index = 0;
for(i=0;i<othqualiattachObj.length;i++){
for(j=0;j<othqualiattachArr.length;j++){           
if(othqualiattachObj[i].value == othqualiattachArr[j])  //如果值与修改前的值相等
{
othqualiattachObj[i].checked= true;
break;
}
}
}
}