basic-javascript-programs/js17.html at master · AswaniPc/basic-javascript-programs · GitHub

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<!--Form validation-->
<!DOCTYPE html>
<html>
<head>
	<style type="text/css">
		#l1,#l2,#l3,#l4,#l5,#l6
		{
			color: red;
			font-size: 5mm;
			text-align: center;
		}
	</style>
	<title>js17</title>
	<script type="text/javascript">
	function valid()
	{
		validate="true";
		nam=document.getElementById("name").value;
		pwd=document.getElementById("pswd").value;
		mle=document.getElementById("mail").value;
		gen=document.getElementsByName("gender")[0];
		plc=document.getElementById("plce").value;
		lang1=document.getElementById("m");
		lang2=document.getElementById("e");
		lang3=document.getElementById("h");
		var pattern=/^([a-zA-Z0-9_.-])+@([a-zA-Z0-9_.-])+\.([a-zA-Z])+([a-zA-Z])+/;
		if (nam=="")
			{
				document.getElementById("l1").innerHTML="Enter name";
				validate=false;
			}
		else if(nam.length<6)
			{
				document.getElementById("l1").innerHTML="username should be atleast 6 charecters";
				validate=false;
			}
		else
			{
				document.getElementById("l1").innerHTML="";

			}
		if(pwd.length==0)
			{
				document.getElementById("l2").innerHTML="enter a password";
				validate=false;
			}
		else if(pwd.length<8)
			{
				document.getElementById("l2").innerHTML="password is too short";
				validate=false;
			}
		else
			{
				document.getElementById("l2").innerHTML="";

			}
		if(gen.checked==false )
			{
				document.getElementById("l4").innerHTML="please choose your gender";
				validate=false;
			}
		else
			{
				document.getElementById("l4").innerHTML="";
			}
		if(plc=="")
			{
				document.getElementById("l5").innerHTML="select your place";
				validate=false;
			}
		else
			{
				document.getElementById("l5").innerHTML="";
			}

		if(lang1.checked==false && lang2.checked==false && lang3.checked==false)
			{
				document.getElementById("l6").innerHTML="select a language";
				validate=false;
			}
		else
			{
				document.getElementById("l6").innerHTML="";
			}
		if(mle.length==0)
			{
				document.getElementById("l3").innerHTML="enter your email";
				validate=false;
			}
		else if(pattern.test(mle)==false)
			{
				document.getElementById("l3").innerHTML="enter correct email";
				validate=false;
			}
		else
			{
				document.getElementById("l3").innerHTML="";
			}

	alert(validate);
	return validate;
	}
	</script>
</head>
<body>
<form action="html1.html" method="post" onsubmit="return valid()" >
<table>
<tr>
	<th>name:</th>
	<td>
	<input type="text" name="name" id="name">
	</td>
</tr>
<tr>
	<td>
		<label id="l1"></label>
	</td>
</tr>
<tr>
	<th>password:</th>
	<td>
	<input type="password" name="pswd" id="pswd">
	</td>
</tr>
<tr>
	<td>
		<label id="l2"></label>
	</td>
</tr>
<tr>
	<th>email:</th>
	<td>
	<input type="text" name="mail" placeholder="me@example.com"id="mail">
	</td>
</tr>
<tr>
	<td>
		<label id="l3"></label>
	</td>
</tr>
<tr>
	<th>gender:</th>
	<td>
	<input type="radio" name="gender" value="male">male
	<input type="radio" name="gender" value="female">female
	</td>
</tr>
<tr>
	<td>
		<label id="l4"></label>
	</td>
</tr>
<tr>
	<th>place:</th>
	<td>
		<select name="plce" id="plce">
			<option disabled selected value="">choose place</option>
			<option value="c">calicut</option>
			<option value="k">kochi</option>
			<option value="t">trivandrum</option>
			<option value="p">palakkad</option>
		</select>
	</td>
</tr>
<tr>
	<td>
		<label id="l5"></label>
	</td>
</tr>
<tr>
	<th>languages known:</th>
	<td>
	<input type="checkbox" name="m" id="m" >malayalam
	<input type="checkbox" name="e" id="e">english
	<input type="checkbox" name="h" id="h">hindi
	</td>
</tr>
<tr>
	<td>
		<label id="l6"></label>
	</td>
</tr>
<tr>
	<td colspan="2">
		<input type="submit" name="ok" value="submit">
	</td>
</tr>
</table>
</form>
</body>
</html>