bonjour à tous,

Je souhaiterais obtenir votre aide afin de mettre en place une vérification d'un formulaire comprenant des champs (text, commentaire, choix multiple et mail)
Novice en javascript.je n'arrive pas et je ne sais pas comment verifier tous mes champs.
la fonction verification:
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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<script language="javascript">
function verif_formulaire()
{
 if(document.formulaire.name.value == "")  {
   alert("Veuillez entrer votre nom!");
   document.formulaire.name.focus();
   return false;
  }
 
</script>
voila le formulaire:
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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<form action="confirmation.php" method="post" >
 
<div class="date1">
We are glad to a open preliminary survey in order to select players who will take part to the upcoming Beta test of the new episode of the Sherlock Holmes series: Sherlock Holmes vs. Jack the Ripper. Thank you for your time answering the following questions and maybe will you take part to this great adventure! The quality of your answers will be determining your chance to be picked up as only the most motivated people with fluent English and beta testing skills will be selected.
</div>
 
<p>
<div class="date"><label for="name">Name/First Name :</label>
<input type="text" name="name" id="name"  value="<?php if(!empty($_POST['name'])) { echo htmlspecialchars($_POST['name'], ENT_QUOTES); } ?>"  />
</p>
<!--<img src="img/sep.gif" alt="" vspace="1">-->
<p>
<label for="birth">Year of birth :</label>
<select name="birth" class="select">
                <option value="<?php echo("$birth"); ?>"><?php echo("$birth"); ?></option>
 
                    <option value="1920" >1920</option> 
                    <option value="1921" >1921</option>
                    <option value="1922" >1922</option>
                    <option value="1923" >1923</option>
                    <option value="1924" >1924</option>
                    <option value="1925" >1925</option>
                    <option value="1926" >1926</option>
                    <option value="1927" >1927</option>
                    <option value="1928" >1928</option>
                    <option value="1929" >1929</option>
                    <option value="1930" >1930</option>
                    <option value="1931" >1931</option>
                    <option value="1932" >1932</option>
                    <option value="1933" >1933</option>
                    <option value="1934" >1934</option>
                    <option value="1935" >1935</option>
                    <option value="1936" >1936</option>
                    <option value="1937" >1937</option>
                    <option value="1938" >1938</option>
                    <option value="1939" >1939</option>
                    <option value="1940" >1940</option>
                    <option value="1941" >1941</option>
                    <option value="1942" >1942</option>
                    <option value="1943" >1943</option>
                    <option value="1944" >1944</option>
                    <option value="1945" >1945</option>
                    <option value="1946" >1946</option>
                    <option value="1947" >1947</option>
                    <option value="1948" >1948</option>
                    <option value="1949" >1949</option>
                    <option value="1950" >1950</option>
                    <option value="1951" >1951</option>
                    <option value="1952" >1952</option>
                    <option value="1953" >1953</option>
                    <option value="1954" >1954</option>
                    <option value="1955" >1955</option>
                    <option value="1956" >1956</option>
                    <option value="1957" >1957</option>
                    <option value="1958" >1958</option>
                    <option value="1959" >1959</option>
                    <option value="1960" >1960</option>
                    <option value="1961" >1961</option>
                    <option value="1962" >1962</option>
                    <option value="1963" >1963</option>
                    <option value="1964" >1964</option>
                    <option value="1965" >1965</option>
                    <option value="1966" >1966</option>
                    <option value="1967" >1967</option>
                    <option value="1968" >1968</option>
                    <option value="1969" >1969</option>
                    <option value="1970" >1970</option>
					<option value="1971" >1971</option>
                    <option value="1972" >1972</option>
					<option value="1973" >1973</option>
					<option value="1974" >1974</option>
					<option value="1975" >1975</option>
					<option value="1976" >1976</option>
					<option value="1977" >1977</option>
					<option value="1978" >1978</option>
					<option value="1979" >1979</option>
					<option value="1980" >1980</option>
                    <option value="1981" >1981</option>
                    <option value="1982" >1982</option>
                    <option value="1983" >1983</option>
                    <option value="1984" >1984</option>
                    <option value="1985" >1985</option>
                    <option value="1986" >1986</option>
                    <option value="1987" >1987</option>
                    <option value="1988" >1988</option>
                    <option value="1989" >1989</option>
                    <option value="1990" >1990</option>
                    <option value="1991" >1991</option>
                    <option value="1992" >1992</option>
                    <option value="1993" >1993</option>
                    <option value="1994" >1994</option>
                    <option value="1995" >1995</option>
                    <option value="1996" >1996</option>
                    <option value="1997" >1997</option>
                    <option value="1998" >1998</option>
                    <option value="1999" >1999</option>
                    <option value="2000" >2000</option>
                    <option value="2001" >2001</option>
 
 </select>
 </p>
 <!--<img src="img/sep.gif" alt="" vspace="1">-->
 <p>
<label for="mail">Mail</label>
<input type="text" name="mail" id="mail" value="<?php if(!empty($_POST['mail'])) { echo htmlspecialchars($_POST['mail'], ENT_QUOTES); } ?>" />
</p>
<!--<img src="img/sep.gif" alt="" vspace="1">-->
<p>
<label for="configuration">Configuration pc (Processor/ 3D graphics card/memory) :</label>
</p>
<p>
<input type="text" name="configuration" id="configuration" value="<?php if(!empty($_POST['configuration'])) { echo htmlspecialchars($_POST['configuration'], ENT_QUOTES); } ?>" />
</p>
<!--<img src="img/sep.gif" alt="" vspace="1">-->
<p>
<label for="internet">Internet broadband :</label>
<select name="internet" class="select">
                <option value="<?php echo("$internet"); ?>"><?php echo("$internet"); ?></option>
 
                    <option value="Cable Modem" >Cable Modem</option> 
                    <option value="Dialup" >Dialup</option>
                    <option value="DSL" >DSL</option>
                    <option value="LAN" >LAN</option>
                    <option value="Wireless" >Wireless</option>
                    <option value="Satellite" >Satellite</option>
 
 
 
 </select>
 </p>
<img src="img/sep.gif" alt="" vspace="1">
<p>
<label for="adventure">1) Which was your last adventure game ? </label>
</p>
<p>
<input type="text" name="adventure" id="adventure" value="<?php if(!empty($_POST['adventure'])) { echo htmlspecialchars($_POST['adventure'], ENT_QUOTES); } ?>" />
</p>
<!--<img src="img/sep.gif" alt="" vspace="1">-->
<p>
<label for="episode">2) Which episode(s) of Sherlock Holmes have you played*? </label>
</p>
<p>
<input type="checkbox" name="episode" id="episode" value="<?php if(!empty($_POST['episode'])) { echo htmlspecialchars($_POST['episode'], ENT_QUOTES); } ?>" />The Mystery of the Mummy
</p>
<p>
<input type="checkbox" name="episode" id="episode" value="<?php if(!empty($_POST['episode'])) { echo htmlspecialchars($_POST['episode'], ENT_QUOTES); } ?>" />The Silver Earring
</p>
<p>
<input type="checkbox" name="episode" id="episode" value="<?php if(!empty($_POST['episode'])) { echo htmlspecialchars($_POST['episode'], ENT_QUOTES); } ?>" />The Awakened
</p>
<p>
<input type="checkbox" name="episode" id="episode" value="<?php if(!empty($_POST['episode'])) { echo htmlspecialchars($_POST['episode'], ENT_QUOTES); } ?>" />Sherlock Holmes versus Arsene Lupin
</p>
<p>
<input type="checkbox" name="episode" id="episode" value="<?php if(!empty($_POST['episode'])) { echo htmlspecialchars($_POST['episode'], ENT_QUOTES); } ?>" />The Awakened' (remastered edition)
</p>
<p>
<input type="checkbox" name="episode" id="episode" value="<?php if(!empty($_POST['episode'])) { echo htmlspecialchars($_POST['episode'], ENT_QUOTES); } ?>" />None
</p>
<!--<img src="img/sep.gif" alt="" vspace="1">-->
<p>
<label for="finished">3) Which ones have you finished? </label>
</p>
<p>
<input type="checkbox" name="finished" id="finished" value="<?php if(!empty($_POST['finished'])) { echo htmlspecialchars($_POST['finished'], ENT_QUOTES); } ?>" />The Mystery of the Mummy
</p>
<p>
<input type="checkbox" name="finished" id="finished" value="<?php if(!empty($_POST['finished'])) { echo htmlspecialchars($_POST['finished'], ENT_QUOTES); } ?>" />The Silver Earring
</p>
<p>
<input type="checkbox" name="finished" id="finished" value="<?php if(!empty($_POST['finished'])) { echo htmlspecialchars($_POST['finished'], ENT_QUOTES); } ?>" />The Awakened
</p>
<p>
<input type="checkbox" name="finished" id="finished" value="<?php if(!empty($_POST['finished'])) { echo htmlspecialchars($_POST['finished'], ENT_QUOTES); } ?>" />Sherlock Holmes versus Arsene Lupin
</p>
<p>
<input type="checkbox" name="finished" id="finished" value="<?php if(!empty($_POST['finished'])) { echo htmlspecialchars($_POST['finished'], ENT_QUOTES); } ?>" />The Awakened' (remastered edition)
</p>
<p>
<input type="checkbox" name="finished" id="finished" value="<?php if(!empty($_POST['finished'])) { echo htmlspecialchars($_POST['finished'], ENT_QUOTES); } ?>" />None
</p>
<!--<img src="img/sep.gif" alt="" vspace="1">-->
<p>
<label for="">4) If you played a Sherlock Holmes adventure can you describe your favourite scene from one of those Sherlock episodes (200 words limited) ?</label>
</p>
<p>
<textarea name="adventure" id="adventure" rows="2" cols="35"></textarea>
</p>
<!--<img src="img/sep.gif" alt="" vspace="1">-->
<p>
<label for="">5) What is your favourite adventure game, and can describe in a few sentences why?</label>
</p>
<p>
<textarea name="adventure_game" id="adventure_game" rows="2" cols="35"></textarea>
</p>
<!--<img src="img/sep.gif" alt="" vspace="1">-->
<p>
<label for="">6) Have you yet participated to a beta test ? if yes, for which game(s)?</label>
</p>
<p>
<textarea name="beta_test" id="beta_test" rows="2" cols="35"></textarea>
</p>
<p></div>
<center>
	<input type="image" src="img/btn_submit.gif" value="envoyer" onClick="return(validerRadioGroup(this.form));"/>
	</center>
</p>
</form>
merci beaucoup
sam!