var g_dernierMenuOuvert = null; 
var dernierValId=null;

function switchSousMenu(ulElement){
	var menuObject = ulElement.getElementsByTagName('ul').item(0);
	if(bw.ie55 || bw.ie5){var valId=ulElement.attributes["id"];}
	else{var valId=ulElement.attributes["id"].value;}	
	var styleObject =  menuObject.style;		
	
	if (styleObject.display == 'block'){
		styleObject.display = 'none';		
		putPlus(valId); putPlus(dernierValId)
		g_dernierMenuOuvert = null; dernierValId=null;
     }else{ 
		if (g_dernierMenuOuvert != null) {
			g_dernierMenuOuvert.style.display = 'none';			
			putPlus(dernierValId)
		}
		styleObject.display = 'block';		
		putMinus(valId)		
		g_dernierMenuOuvert = menuObject;		
		if(bw.ie55 || bw.ie5){dernierValId=ulElement.attributes["id"];}
		else{dernierValId=ulElement.attributes["id"].value;}
	}	
}

function putPlus(valId) {
	if (document.getElementById('plus'+valId)) {
		document.getElementById('plus'+valId).src="/img/dhtml_plus.gif";
	}
}

function putMinus(valId) {
	if (document.getElementById('plus'+valId)) {
		document.getElementById('plus'+valId).src="/img/dhtml_minus.gif"
	}
}