function popupcentree(page,largeur,hauteur,options) 
{
	var top=(screen.height-hauteur)/2;
	var left=(screen.width-largeur)/2;
	window.open(page,"","top="+top+",left="+left+",width="+largeur+",height="+hauteur+","+options);
} 

function show_projet(num)
{
	if (document.getElementById('projet_'+num).style.display == 'none')
		{
			document.getElementById('projet_'+num).style.display = 'block';
		}
	else
		{
			document.getElementById('projet_'+num).style.display = 'none';
		}
}

function toggle_div(DivId)
{
	if (document.getElementById(DivId).style.display == 'none')
	{
		document.getElementById(DivId).style.display = 'block';
		document.getElementById("lien_"+DivId).innerHTML ='-';
	}
	else
	{
		document.getElementById(DivId).style.display = 'none';
		document.getElementById("lien_"+DivId).innerHTML ='+';
	}
}