var myrules =
{
	'input.textbox' : function(element)
	{
		element.onclick = function()
		{
			if (element.value == 'enter your email here')
			{
				element.value = '';
			}
		},
		element.onblur = function()
		{
			if (element.value == '')
			{
				element.value = 'enter your email here';
			}
		}
	}
}

Behaviour.register(myrules);