var Editor; 

function Format(action) 
{ 
	Editor.execCommand(action, false, null); 
} 

function Colour(colour) 
{ 
	Editor.execCommand("forecolor",false, colour); 
} 

window.onload = function() 
{ 
	Editor = document.getElementById('textbox').contentWindow.document;
	Editor.designMode = "on";
	document.forms[0].onsubmit = function() 
	{ 
		var text = document.getElementById('text'); 
		text.value = Editor.body.innerHTML; 
	} 
}