write this on the writing side
To accept string from user and count number of vowels in the given string.
<!DOCTYPE html>
<html>
<head>
<title>Sop 3 JAVasript Count vowels</title>
</head>
<body>
<form name="form1">
<h1>Enter the String whose vowel isto be counted</h1>
<input type="text" name="text1">
<input type="button" name="btn_checkvowel" value="Click to count" onclick="count()">
</form>
<script type="text/javascript">
function count()
{
var i,ch,str,counter=0;
str=form1.text1.value;
for(i=0;i<str.length;i++)
{
ch=str.charAt(i);
if(ch=='A'||ch=='a'||ch=='e'||ch=='E'||ch=='i'||ch=='I'||ch=='o'||ch=='O'||ch=='u'||ch=='U')
counter++;
}
alert("Number of Vowels in Entered String is:"+counter);
}
</script>
</body>
</html>
