Js 时间间隔计算(间隔天数)

function GetDateDiff(startDate,endDate)  
{  
    var startTime = new Date(Date.parse(startDate.replace(/-/g,   "/"))).getTime();     
    var endTime = new Date(Date.parse(endDate.replace(/-/g,   "/"))).getTime();     
    var dates = Math.abs((startTime - endTime))/(1000*60*60*24);     
    return  dates;    
}function GetDateDiff(star