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06.19.2008 at 04:21AM PDT, ID: 23498358
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8.6

Make text visible or not by agecheck with javascript

Asked by behets in JavaScript, Extensible HTML (XHTML), JScript

Tags:

Hi,

i want to make a form where visitors have to select there birthdate with a dropdown.
If there 18 or above, a text with a checkbox is hidden, if there not 18, the text with the checkbox is visible.
I include a code sample of what i have, can somebody help me with this and tell me why it doesn't works?

many thanx in advance!
tomStart Free Trial 
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<head>
<script language="javascript" type="text/javascript">
function check_age(form1)
{
 
if (document.form1.gebjaar.value > "1990"){
document.form1.getElementById('agetext').style.visibility="hidden";
}else{
document.form1.getElementById('agetext').style.visibility="visible";
}}
</script>
</head>
 
<body>
 
 
<form action="next.php" method="post" name="form1" >
<select name="gebjaar" id="gebjaar" onchange="return check_age(this)">
        <option value="2008" selected>2008</option>
        <option value="2007">2007</option>
        <option value="2006">2006</option>
        <option value="2005">2005</option>
        <option value="2004">2004</option>
        <option value="2003">2003</option>
        <option value="2002">2002</option>
        <option value="2001">2001</option>
        <option value="2000">2000</option>
        <option value="1999">1999</option>
        <option value="1998">1998</option>
        <option value="1997">1997</option>
        <option value="1996">1996</option>
        <option value="1995">1995</option>
        <option value="1994">1994</option>
        <option value="1993">1993</option>
        <option value="1992">1992</option>
        <option value="1991">1991</option>
        <option value="1990">1990</option>
        <option value="1989">1989</option>
        <option value="1988">1988</option>
        <option value="1987">1987</option>
        <option value="1986">1986</option>
        <option value="1985">1985</option>
        <option value="1984">1984</option>
        <option value="1983">1983</option>
        <option value="1982">1982</option>
        <option value="1981">1981</option>
        <option value="1980">1980</option>
        <option value="1979">1979</option>
        <option value="1978">1978</option>
        <option value="1977">1977</option>
        <option value="1976">1976</option>
        <option value="1975">1975</option>
        <option value="1974">1974</option>
        <option value="1973">1973</option>
        <option value="1972">1972</option>
        <option value="1971">1971</option>
        <option value="1970">1970</option>
        <option value="1969">1969</option>
        <option value="1968">1968</option>
        <option value="1967">1967</option>
        <option value="1966">1966</option>
        <option value="1965">1965</option>
        <option value="1964">1964</option>
        <option value="1963">1963</option>
        <option value="1962">1962</option>
        <option value="1961">1961</option>
        <option value="1960">1960</option>
        <option value="1959">1959</option>
        <option value="1958">1958</option>
        <option value="1957">1957</option>
        <option value="1956">1956</option>
 </select>
 
 
<div id="agetext">
<input name="parents" type="checkbox" /> I 'm 18 years of age or older. If Im under 18 years of age, I have my parents approval to participate.
</div>
 
 
</body>
[+][-]06.19.2008 at 04:29AM PDT, ID: 21821091

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[+][-]06.19.2008 at 04:32AM PDT, ID: 21821098

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[+][-]06.19.2008 at 04:37AM PDT, ID: 21821133

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[+][-]06.19.2008 at 04:42AM PDT, ID: 21821161

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[+][-]06.19.2008 at 04:53AM PDT, ID: 21821227

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[+][-]06.19.2008 at 04:59AM PDT, ID: 21821262

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[+][-]06.19.2008 at 05:07AM PDT, ID: 21821303

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[+][-]06.19.2008 at 05:09AM PDT, ID: 21821322

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[+][-]06.19.2008 at 05:16AM PDT, ID: 21821366

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[+][-]06.19.2008 at 05:19AM PDT, ID: 21821381

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[+][-]06.19.2008 at 05:51AM PDT, ID: 21821619

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[+][-]06.19.2008 at 06:01AM PDT, ID: 21821685

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About this solution

Zones: JavaScript, Extensible HTML (XHTML), JScript
Tags: javascript
Sign Up Now!
Solution Provided By: ali_kayahan
Participating Experts: 2
Solution Grade: A
 
 
[+][-]06.19.2008 at 06:13AM PDT, ID: 21821776

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