function overState ($passedId)
{

	if($passedId == 'home')
	{
		
		document.getElementById('home').style.background = 'url(images/home_over.jpg)';
		document.getElementById('home_bloc').style.display = 'block';
		document.getElementById('home_bloc').style.visibility = 'visible';
		
		document.getElementById('about').style.background = 'url(images/)';
		document.getElementById('about_bloc').style.display = 'none';
		document.getElementById('about_bloc').style.visibility = 'hidden';
		
		document.getElementById('projects').style.background = 'url(images/)';
		document.getElementById('projects_bloc').style.display = 'none';
		document.getElementById('projects_bloc').style.visibility = 'hidden';
		
		document.getElementById('contributions').style.background = 'url(images/)';
		document.getElementById('contributions_bloc').style.display = 'none';
		document.getElementById('contributions_bloc').style.visibility = 'hidden';
		
		document.getElementById('contact').style.background = 'url(images/)';
		document.getElementById('contact_bloc').style.display = 'none';
		document.getElementById('contact_bloc').style.visibility = 'hidden';	
		
	}
	if($passedId == 'about')
	{
		
		document.getElementById('home').style.background = 'url(images/)';
		document.getElementById('home_bloc').style.display = 'none';
		document.getElementById('home_bloc').style.visibility = 'hidden';
		
		document.getElementById('about').style.background = 'url(images/about_over.jpg)';
		document.getElementById('about_bloc').style.display = 'block';
		document.getElementById('about_bloc').style.visibility = 'visible';
		
		document.getElementById('projects').style.background = 'url(images/)';
		document.getElementById('projects_bloc').style.display = 'none';
		document.getElementById('projects_bloc').style.visibility = 'hidden';
		
		document.getElementById('contributions').style.background = 'url(images/)';
		document.getElementById('contributions_bloc').style.display = 'none';
		document.getElementById('contributions_bloc').style.visibility = 'hidden';
		
		document.getElementById('contact').style.background = 'url(images/)';
		document.getElementById('contact_bloc').style.display = 'none';
		document.getElementById('contact_bloc').style.visibility = 'hidden';			
		
	}
	if($passedId == 'projects')
	{
		
		document.getElementById('home').style.background = 'url(images/)';
		document.getElementById('home_bloc').style.display = 'none';
		document.getElementById('home_bloc').style.visibility = 'hidden';
		
		document.getElementById('about').style.background = 'url(images/)';
		document.getElementById('about_bloc').style.display = 'none';
		document.getElementById('about_bloc').style.visibility = 'hidden';
		
		document.getElementById('projects').style.background = 'url(images/projects_over.jpg)';
		document.getElementById('projects_bloc').style.display = 'block';
		document.getElementById('projects_bloc').style.visibility = 'visible';
		
		document.getElementById('contributions').style.background = 'url(images/)';
		document.getElementById('contributions_bloc').style.display = 'none';
		document.getElementById('contributions_bloc').style.visibility = 'hidden';
		
		document.getElementById('contact').style.background = 'url(images/)';
		document.getElementById('contact_bloc').style.display = 'none';
		document.getElementById('contact_bloc').style.visibility = 'hidden';			
		
	}
	if($passedId == 'contributions')
	{
		
		document.getElementById('home').style.background = 'url(images/)';
		document.getElementById('home_bloc').style.display = 'none';
		document.getElementById('home_bloc').style.visibility = 'hidden';
		
		document.getElementById('about').style.background = 'url(images/)';
		document.getElementById('about_bloc').style.display = 'none';
		document.getElementById('about_bloc').style.visibility = 'hidden';
		
		document.getElementById('projects').style.background = 'url(images/)';
		document.getElementById('projects_bloc').style.display = 'none';
		document.getElementById('projects_bloc').style.visibility = 'hidden';
		
		document.getElementById('contributions').style.background = 'url(images/contrib_over.jpg)';
		document.getElementById('contributions_bloc').style.display = 'block';
		document.getElementById('contributions_bloc').style.visibility = 'visible';
		
		document.getElementById('contact').style.background = 'url(images/)';
		document.getElementById('contact_bloc').style.display = 'none';
		document.getElementById('contact_bloc').style.visibility = 'hidden';			
		
	}
	if($passedId == 'contact')
	{
		
		document.getElementById('home').style.background = 'url(images/)';
		document.getElementById('home_bloc').style.display = 'none';
		document.getElementById('home_bloc').style.visibility = 'hidden';
		
		document.getElementById('about').style.background = 'url(images/)';
		document.getElementById('about_bloc').style.display = 'none';
		document.getElementById('about_bloc').style.visibility = 'hidden';
		
		document.getElementById('projects').style.background = 'url(images/)';
		document.getElementById('projects_bloc').style.display = 'none';
		document.getElementById('projects_bloc').style.visibility = 'hidden';
		
		document.getElementById('contributions').style.background = 'url(images/)';
		document.getElementById('contributions_bloc').style.display = 'none';
		document.getElementById('contributions_bloc').style.visibility = 'hidden';
		
		document.getElementById('contact').style.background = 'url(images/contact_over.jpg)';
		document.getElementById('contact_bloc').style.display = 'block';
		document.getElementById('contact_bloc').style.visibility = 'visible';			
		
	}

}

function pickProject()
{

var projectLink = document.getElementById('projectId').href
var subNav = document.getElementById('subNavLink');

subNav.href = projectLink;
}