Ja, f.eks. sådan:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"
http://www.w3.org/TR/html4/loose.dtd"><html>
<head>
<title>Check dato</title>
<script type="text/javascript">
function checkDato(f){
if (f.DagDato.selectedIndex == 0){
alert('Fejl i "Dag" angivelsen');
f.DagDato.focus();
return false;
}
if (f.Maaned.selectedIndex == 0){
alert('Fejl i "Måned" angivelsen');
f.Maaned.focus();
return false;
}
if (f.Aar.selectedIndex == 0){
alert('Fejl i "År" angivelsen');
f.Aar.focus();
return false;
}
var dato = new Date(f.Aar.value,(+f.Maaned.value-1),f.DagDato.value);
if(+f.DagDato.value != dato.getDate() || +f.Maaned.value != dato.getMonth()+1 || +f.Aar.value != dato.getFullYear()){
alert("Ugyldig dato");
f.DagDato.focus();
return false;
}
var actDate = f.DagDato.value + "." + f.Maaned.value + "." + f.Aar.value.substring(2);
for(i=0;datoer.length>i;i++){
if(actDate == datoer[i]){
alert('Desværre er vi OPTAGET den '+actDate+', men\nmange tak for Deres forespørgsel.\n\nVi håber, at vi istedet kan betjene Dem\nved en anden lejlighed.');
return false;
}
}
alert('Festdatoen "'+actDate+'" er accepteret.\n\nDe kan altså godt bestille\nden pågældende dato....');
}
var datoer = ["14.08.01","08.09.01","29.09.01","24.12.01","31.12.01","30.10.01","03.11.01","10.11.01",
"24.12.02","31.12.02","23.03.02","26.04.02","04.05.02","11.05.02","18.05.02","01.06.02","15.06.02","22.06.02","06.07.02","20.07.02","27.07.02","10.08.02","17.08.02","07.09.02","02.11.02","16.11.02",
"24.12.03","31.12.03","16.05.03","17.05.03","30.08.03",
"24.04.04","29.05.04","10.07.04","24.07.04","07.08.04","25.09.04","02.10.04","24.12.04","31.12.04",
"24.12.05","31.12.05","19.02.05","07.05.05","14.05.05","18.06.05","09.07.05","13.08.05","20.08.05","27.08.05","10.09.05","17.09.05"
]
</script>
</head>
<body bgcolor="#000000" text="#FFCC99" link="#FFCC99" vlink="#FFCC99" alink="#00FFFF">
<table border="0" cellpadding="0" cellspacing="0" width="100%" height="100%">
<tr>
<td>
<p align="center"><font face="Arial" size="4"><b>Check Dato:</b></font></p>
<p align="center"><font face="Arial" size="2">Herunder kan De checke om vi overhovedet
er ledige den dag De skal holde fest.</font></p>
<form name="datoform" action="get">
<p align="center">
<select size="1" name="DagDato" style="background-color: #FFCC99; font-size: 8 pt; font-weight: bold">
<option selected value="0">Dag</option>
<option value="01">1</option>
<option value="02">2</option>
<option value="03">3</option>
<option value="04">4</option>
<option value="05">5</option>
<option value="06">6</option>
<option value="07">7</option>
<option value="08">8</option>
<option value="09">9</option>
<option value="10">10</option>
<option value="11">11</option>
<option value="12">12</option>
<option value="13">13</option>
<option value="14">14</option>
<option value="15">15</option>
<option value="16">16</option>
<option value="17">17</option>
<option value="18">18</option>
<option value="19">19</option>
<option value="20">20</option>
<option value="21">21</option>
<option value="22">22</option>
<option value="23">23</option>
<option value="24">24</option>
<option value="25">25</option>
<option value="26">26</option>
<option value="27">27</option>
<option value="28">28</option>
<option value="29">29</option>
<option value="30">30</option>
<option value="31">31</option>
</select> -
<select size="1" name="Maaned" style="background-color: #FFCC99; font-size: 8 pt; font-weight: bold; border-style: solid">
<option selected value="0">Måned</option>
<option value="01">Januar</option>
<option value="02">Februar</option>
<option value="03">Marts</option>
<option value="04">April</option>
<option value="05">Maj</option>
<option value="06">Juni</option>
<option value="07">Juli</option>
<option value="08">August</option>
<option value="09">September</option>
<option value="10">Oktober</option>
<option value="11">November</option>
<option value="12">December</option>
</select> -
<select size="1" name="Aar" style="background-color: #FFCC99; font-size: 8 pt; font-weight: bold">
<option selected value="0">År</option>
<option value="2005">2005</option>
</select>
<br>
<p align="center">
<input type="reset" value="Nulstil" name="B2">
<input type="button" value="Check Dato" name="ChkDato" onclick="checkDato(this.form);"></p>
</form>
</td>
</tr>
</table>
</body>
</html>
-- og jeg har ikke forholdt mig til html-delen, kun ændret option-values, da det syntes mig lettere at bruge værdierne direkte !-)
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