Pop up boxes using javascript

<script type="text/javascript">
function a()
{
var c=document.getElementById("t1").value
var d=document.getElementById("p1").value
alert('Hello' + '   '  + c + '  ' + 'your password  is ' + '  '+ d)

}


adding space between words

alert('hello' + '  ' + name)

Accessing radio by javascript

function a()
{
 var b=document.getElementById("t1").value;
alert(b);
document.getElementById("radio1").checked=false;
}

<input type='radio' id='radio1' />

Converting String value to integer in Javascript

function add()
{
var a=document.getElementById("text1").value
var b=document.getElementById("text2").value
var c = parseFloat(a) + parseFloat(b);
alert(c)
document.getElementById("text3").value=c
}


<input type='text' id='text1'  />
<input type='text' id='text2' />
<input type='text' id='text3' />

<input type='button'  value='add'  onclick='add()'>

created three textboxes
textbox1 has id text1
textbox2 has id text2
textbox3 has id text3

and add button to perform addition of values in textbox1 and textbox2 and displaying the result in textbox3
the value we input in textbox is in string
so we add integer number we get som different value
to convert string values to integer
we need to use parse command

example we provided value 2 and 3 to textbox 1 and textbox 2
these vlaues are in string we need to convert those values to integer
use parse

such as

parseFloat(a)
parseFloat(b)

another way

function tipp() { 
  var a = parseInt(document.getElementById("textbox1").value); 
  var b = parseInt(document.getElementById("textbox2").value); 
  var c = a + b; 
  myform.total.value = c;  
} 

Accessing text box though JavaScript

<script type="text\JavaScript">
function a()
{
 var b=document.getElementById("t1").value;
alert(b)
}
 </script>
<input type='text' id='t1' />
<input type='button' onclick='a()' />


the text box has id t1, which can be used to access its content through DOM method
such as document.getElementById("t1").value