HTML and Javascript Program?

HI
Can anyone help me write code for this question

Design an HTML page to accept any string and do the following by providing command buttons:
a. Display length of the string
b. Display each character on a new line
c. Replace all blank spaces with 鈥?鈥?symbol.
d. Accept a character from the user and display the occurrence of the same in a string.
e. Display no. of words in a string.

<script type="text/javascript">
function leng()
{
var str=document.form1.getinput.value;
alert("length of String : " +str.length);
}
</script>
<form name=form1>
<P>
Enter the Sentence : <input type="text" name="getinput" >
<br><br>
Click Button to perform its
action:</P>
<P>
<br>

<input type="button" value="Length of String" OnClick="leng()" name=button1>

<input type="button" value="Display each char" onclick="eachchar()" name=button2>
<input type="button" value="Blank space with '#'" onclick="blank()" name=button3>
</P>
<P>聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽
<input type="button" value="Occurrence" onclick="occur() " name=button4>
<input type="button" value="No of Words" onclick="word()" name=button5>
</P>
</form>

php is easier than javascript so better use php for that

First create a test.htm file. In that create a text box using <input type="text" name="txtString"/>
then create 5 buttons using
<input type="button" name="btnLength" value="Length" onclick="javascript:findLength();"/>
then write javascript in between head tag in the same page.
function findLength()
{
alert(your control name.length);
}