时间大小的比较

用户填入从几点(FromHour)几分(FromMin)到几点(ToHour)几分(ToMin)
都是下拉框选择的整型
怎么验证From时间在To时间的前面?
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new两个Date对象出来compare咯。
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t1,t2
t1="2002/12/10"
t2="2002/12/12"
if(Date.parse(new Date(t1))>Date.parse(new Date(t2)))
alert(">")
else
alert("<")

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