<script language="javascript">
<!--
function checkform(){
re = /^\d{4}\-\d{2}\-\d{2}$/;
if(!re.test(form1.mydate.value)){
alert("错了,错了。");
form1.mydate.focus();
return false;
}
return true;
}function auto(){
if(form1.mydate.value.length == 4){
form1.mydate.value += "-";
}
if(form1.mydate.value.length == 7){
form1.mydate.value += "-";
}
}
//-->
</script>
<form name="form1" method="post" action="" onSubmit="return checkform();">
<input name="mydate" type="text" id="mydate" onkeyup="auto()" maxlength="10">
<input type="submit" name="Submit" value="提交">
</form>
<!--
function checkform(){
re = /^\d{4}\-\d{2}\-\d{2}$/;
if(!re.test(form1.mydate.value)){
alert("错了,错了。");
form1.mydate.focus();
return false;
}
return true;
}function auto(){
if(form1.mydate.value.length == 4){
form1.mydate.value += "-";
}
if(form1.mydate.value.length == 7){
form1.mydate.value += "-";
}
}
//-->
</script>
<form name="form1" method="post" action="" onSubmit="return checkform();">
<input name="mydate" type="text" id="mydate" onkeyup="auto()" maxlength="10">
<input type="submit" name="Submit" value="提交">
</form>
这种方法我用过,但是在删除一个字符后验证就乱了阿!
请问一下如何处理这个问题,有没有简单一点的函数之类的东东!
谢谢!
http://joe.2418.com/programme/html/timer/time.htm
里面有代码,自己研究一下吧
<!--
function isValidDate()
{
var dateStr = document.myForm.date.value;
var strErr=0;
var datename = new Date();
var datePat = /^(\d{4})(\/|-)(\d{1,2})\2(\d{1,2}|\d{4})$/;
var matchArray = dateStr.match(datePat);
if (matchArray == null)
{
alert("Date is not in a valid format.")
strErr=1;
return false;
}
month = matchArray[3];
day = matchArray[4];
year = matchArray[1];
if (month < 1 || month > 12)
{
alert("Month must be between 1 and 12.");
strErr=1;
return false;
}
if (day < 1 || day > 31)
{
alert("Day must be between 1 and 31.");
strErr=1;
return false;
}
if ((month==4 || month==6 || month==9 || month==11) && day==31)
{
alert("Month "+month+" doesn't have 31 days!")
strErr=1;
return false
}
if (month == 2)
{
var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
if (day>29 || (day==29 && !isleap))
{
alert("February " + year + " doesn't have " + day + " days!");
strErr=1;
return false;
}
}
return true;
}
//-->
</script>
<form name=myForm onsubmit="return(isValidDate())">
<input type=text name=date>yyyy-mm-dd
</form>
要限制其输入格式为
yyyy-mm-dd 才行.<input type=text onkeyup="bao(this)">
<script>
function bao(obj)
{
if(obj.value.length==4)
obj.value+="-";
if(obj.value.length==7)
obj.value+="-";
}
</script>
function moveAtCaret(obj,n){//将obj中光标向dirc方向移动n个字符
obj.focus();
var rng=document.selection.createRange();
rng.moveStart("character", n);
rng.select();
}
</SCRIPT>
<input id =show value="1234567890"><p>
<input type=button value="移动" onclick=moveAtCaret(show,5)>
大恩大德!没齿难忘!谢谢!
谢谢!
.a3{width:30;border:0;text-align:center}
</style><div style="border-width:1;border-color:balck;border-style:solid;width:120;font-size:9pt">
<input type=text name=year maxlength=4 class=a3>-
<input type=text name=month maxlength=2 class=a3>-
<input type=text name=day maxlength=2 class=a3>
</div>
自己把楼上的事件了搬过来改改就搞定了 ^^
<script language="javascript">
function checkDate(obj){
………………
}
</script>
<input type="text" name="theTime" onFocus="setday(this)" onKeyPress="checkDate(this)">