// JavaScript Document
function preloadImg()
{
    var args = preloadImg.arguments;
    for (var i = 0; i < args.length; i++)
	{
        var primage = new Image();
        primage.src = args[i];
    }
}

preloadImg('images/textile.jpg','images/confection.jpg','images/pieces.jpg', 'images/levage.jpg', 'images/plasturgie.jpg');

function rollover(id1, id2, produit)
{
	document.getElementById(id1).style.display = 'none';
	document.getElementById(id2).style.display = 'block';
	document.getElementById('menu_image').src = 'images/' + produit + '.jpg';
	document.getElementById('menu_lien').href = 'index.php?page=' + produit;
}

function show(id)
{
	if(document.getElementById(id).style.display == 'none')
	{
		document.getElementById(id).style.display = 'block';
	}
	else
	{
		document.getElementById(id).style.display = 'none';
	}		
}