function m_over() {
var button = document.getElementById('btn');
button.src = 'images/get-in-touch-on.jpg';
}

function m_out() {
var button = document.getElementById('btn');
button.src = 'images/get-in-touch.jpg';
}



function m_over2() {
var button2 = document.getElementById('submit');
button2.src = 'images/send-on.jpg';
}


function m_out2() {
var button2 = document.getElementById('submit');
button2.src = 'images/send.jpg';
}


function init() {
var button = document.getElementById('btn');
button.onmouseover = m_over;
button.onmouseout = m_out;

if (document.getElementById('submit')) {
	var button2 = document.getElementById('submit');
	button2.onmouseover = m_over2;
	button2.onmouseout = m_out2;
	}
}

window.onload = init;