function formsubmit() {
Today = new Date();
var NowHour = Today.getHours();
var NowMinute = Today.getMinutes();
var NowSecond = Today.getSeconds();
var mysec = (NowHour*3600)+(NowMinute*60)+NowSecond;
if((mysec-document.formsubmitf.mypretime.value)>600){
//600只是一个时间值，就是5分钟内禁止重复提交，值随便
document.formsubmitf.mypretime.value=mysec;
}
else{
alert(' 按一次就够了，请勿重复提交！请耐心等待！谢谢合作！');
return false;
}
document.forms.formsubmitf.submit();
}
js如何设置禁止表单重复提交
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