1. Copy and paste the following between your HEAD tags:-

function ConvertToDecimal(){
var tot=0;
var num=form.binNum.value;
var length=parseInt(form.binNum.value.length);
for (x=1; x<=length; x++)
{if (x==1 & num==0)
{alert ("Please do not start with zero!");
form.binNum.focus();
form.binNum.select();
return false}
}

var y=new Array(length);
for (x=0; x<=length; x++)
{var t2=Math.pow(2,length-x);
var tot2=num.substr(x,1)*t2/2;
y[x]=parseInt(tot2);
tot+=y[x]}
form.decNum.value = tot
}
</script>

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2. Copy and paste the following code between your BODY tags where you want the input displayed:
<div style="position:absolute; left:250; top:200">
<table width=100% border=0 bordercolor=#ffff00 cellspacing="0" cellpadding="10">
<tr><td>
<center><h3>Convert Binary to Decimal or Decimal to Binary</h3></center><ul type="square">
<li>The binary system of numbers is operated on a dual state; zeros (0's) and ones (1's).
<li>The decimal numbering system, on the other hand, is based on a ten numbers system; zero (0) through nine (9).
<li>Simply input the decimal or binary number in the appropriate box and the other number appears in the opposite box.</ul>
<p>
<fieldset>
<legend align="center" style="color:#000000;font-size:14pt">Input Decimal or Binary Number</legend>
<table width=90% align="center" border="0" cellspacing="10" cellpadding="0">
<form name="form">
<tr><td align="center" style="color:#ff0000"> Decimal Number</td><td align="center" style="color:#ff0000"> Binary Number</td></tr>

<tr><td align="center"><input type=text name="decNum" size=10 maxlength=11 onKeyPress="if ((event.keyCode<48) || (event.keyCode>57)) event.returnValue=false" onKeyUp="ConvertToBinary()"></td> 
<td align="center"><input type=text name="binNum" size=42 maxlength=48 onKeyPress="if ((event.keyCode<48) || (event.keyCode>49)) event.returnValue=false" onKeyUp="ConvertToDecimal()"></td></tr>
<a href="http://www.datedial.com/datconvert_binary_decimal.asp">..</a>
</form>
</td></tr></table>
</fieldset>
</div>
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Please Note
You can display where ever you like. You change the "left" and "top" values in the opening "div" tag above to whatever values you need. 
a) "top" is the vertical distance of the top left corner of the display starting at zero. The higher the number the lower down the page.
b) "left" is the horizontal distance of the top left corner of the display starting at zero. The higher the number the further across the page.
c) You can change also the color of the display and the background.

If you have any problems or questions please email us at info@datedial.com.

Linking Information:-
TITLE : Convert Binary to Decimal or Decimal to Binary
URL : http://www.datedial.com/datConvert_Binary_Decimal.asp
DESCRIPTION : Convert a binary number to decimal format or a decimal number to binary format.