// Define the preload images array
var preImages = new Array();

// Preload the defined images
function preloading() 
{
	for (x=0; x<preloading.arguments.length; x++){
		preImages[x] = new Image();
		preImages[x].src = preloading.arguments[x];
	}
}

// Preload the navigation hover images
preloading("nav_services_hover.png", "nav_portfolio_hover.png", "nav_clients_hover.png", "nav_blog_hover.png", "nav_about_hover.png", "nav_contact_hover.png");

function showBackground(divId, pos) 
{
	var i = document.getElementById(divId);
	i.style.backgroundPosition = '-268px 0px';
}

function hideBackground(divId, pos) 
{	
	var i = document.getElementById(divId);
	i.style.backgroundPosition = '0px 0px';
}

function validateContactForm()
{
        // Check to see if there is a name
        if (document.getElementById('formName').value == "") {  document.getElementById('formName').className = 'textColor'; }
        else { document.getElementById('formName').className = 'text'; }

        // Check to see if there is at least a phone or email
        if ((document.getElementById('formEmail').value == "") && (document.getElementById('formPhone').value == ""))
        {
                document.getElementById('formEmail').className = 'textColor';
                document.getElementById('formPhone').className = 'textColor';
        }
        else
        {
                document.getElementById('formEmail').className = 'text';
                document.getElementById('formPhone').className = 'text';
        }
		
		if (document.getElementById('formMessage').value == "")
		{
			document.getElementById('formMessage').style.borderColor = '#791a15';
		}
		else 
		{
			document.getElementById('formMessage').style.borderColor = '#b4cd95';
		}

}