var clicks = 0;
function switchAdditionalSearchItems(divId) {
    clicks++;
    var i = clicks%2;
    var div = document.getElementById(divId);
    var img = document.getElementById('openclose-image');
    
    if (i == 0) {
        div.style.display = 'block';
    	img.src = '/img/cancel.png';
    }
    else {
        div.style.display = 'none';
        img.src = '/img/add.png';
    }
}

function checkAddress() {
    city = document.getElementById("city").value;
    state = document.getElementById("state").value;
    zip = document.getElementById("zip").value;
    
    if((city == '' || state == '') && zip == '') {
    	alert('Please enter a City and State or ZIP Code');
    	return false;
    }
    else if(zip != '' && (isNaN(zip) || zip.length != 5)) {
    	alert('Please enter a valid 5 digit ZIP Code.');
    	return false;
    }
    else {
    	return true;
    }
}

function homeFocus(el) {
	if(clicks == 0) el.value = '';
	el.style.color = '#333';
	clicks++;
}