var ListeFam = new Array(0);

function Layer_switch(idnum)
{
	if(document.getElementById){
		if (idnum.toString().substring(0,1)=="M") {
			Layer_switch_allnone(idnum);
		}
		if(document.getElementById("Layer_Contenu"+idnum)){
			var elem = document.getElementById("Layer_Contenu"+idnum);

			if(elem == null) { return; }			
			if(elem.style.display == "none")
			{
				elem.style.display = "block";
			}
			else
			{
				elem.style.display = "none";

			}
		}
	}

}

function Layer_switch_allnone(idnum) {
			
	if(document.getElementById){
		for(var i=0;i<ListeFam.length;i++) {
	
			if(document.getElementById("Layer_ContenuM"+ListeFam[i]) && (('M'+ListeFam[i])!=idnum) ){
				document.getElementById("Layer_ContenuM"+ListeFam[i]).style.display = "none";
			}
		}
	}
}