{1,2})$/;
var r = str.match(reg);
if(r==null)
alert('对不起,您输入的日期格式不正确!'); //请将“日期”改成你需要验证的属性名称!
}
}
//判断日期类型是否为YYYY-MM-DD hh:mm:ss格式的类型 
function IsDateTime()
{
var str = document.getElementById('str').value.trim(); 
if(str.length!=0)
{ 
var reg = /^(\d
{1,4})(-|\/)(\d
{1,2})\2(\d
{1,2}) (\d
{1,2}):(\d
{1,2}):(\d
{1,2})$/; 
