function checkCallBack(namefield, phonefield) {
   
    namevalue = namefield.value;
    phonevalue = phonefield.value;

    if (namevalue != '' && namevalue != 'Your name...' && phonevalue != '' && phonevalue != 'Your phone...') {
        return true
    }
    else {
        alert('Please enter your name and your phone number.');
        return false
    }
   }

function homeCols(num, cta) {
	if (cta == false) {
		var colName = "homeColTab";
	}
	else {
		var colName = "ctaTab";
	}

	var tab1 = document.getElementById(colName+'1');
	var tab1c = document.getElementById(colName+'1Content');
	var tab2 = document.getElementById(colName+'2');
	var tab2c = document.getElementById(colName+'2Content');

	switch (num) {
		case 1:
			tab1c.style.display = 'block';
			tab1.style.backgroundImage = 'url(/images/' + colName + '1.jpg)';

			tab2c.style.display = 'none';
			tab2.style.backgroundImage = 'url(/images/' + colName + '2.jpg)';
		break;

		case 2:
			tab1c.style.display = 'none';
			tab1.style.backgroundImage = 'url(/images/' + colName + '1-off.jpg)';

			tab2c.style.display = 'block';
			tab2.style.backgroundImage = 'url(/images/' + colName + '2-on.jpg)';
		break;
	}
}