js动态设置Select中Option选中

    var select = document.getElementById("selectYear");  
    var nextYear = '2012';  
    for(var i=0; i<select.options.length; i++){  
        if(select.options[i].innerHTML == nextYear){  
            select.options[i].selected = true;  
            break;  
        }  
    }  

    /** 
     * 设置select选中 
     * @param selectId select的id值 
     * @param checkValue 选中option的值 
     * @author lqy 
     * @since 2015-08-21 
    */  
    function setSelectChecked(selectId, checkValue){  
        var select = document.getElementById(selectId);  
        for(var i=0; i<select.options.length; i++){  
            if(select.options[i].innerHTML == checkValue){  
                select.options[i].selected = true;  
                break;  
            }  
        }  
    };