function greyInputs(id, defaultText, greyClass, blackClass)
{
	var a = document.getElementById(id);
	if(a.value == defaultText)
	{
		a.className = greyClass;
	}
	else
	{
		a.className = blackClass;
	}
}

function changeSearchToBlack(input, blackClass)
{
	input.className = blackClass;
	
}