Cancel button using javascript

[ghjk]

I have "cancel" button in php files. I want to write common javascript function for cancel button. When user click cancel button I want to clear php form data.
Is it possible?

<input id="Cancel" src="Cancel.jpg" type="image"  alt="cancel"    onclick="Cancel('cancel');"/>

JS code

function Cancel(cancel){
	
	if(cancel=='cancel'){
		document.getElementById('No').value='';
		document.getElementById('FullName').value='';
		document.getElementById('Address').value='';
		document.getElementById('Email').value='';
	}
	
}

[Dormilich]

Is it possible?

sure, although I'd go for a simple reset button...

[ghjk]

But my above code is not working. Could you tell me where I goes wrong?

[Dormilich]

are there any error messages in the Console or FireBug?

[ghjk]

No. There are no messages. That's why I'm confusing.

[Dormilich]

then I need a link to see (and test) for myself.