function showLayer(lname) {
 	var theObj,name;

	if(lname != document.lastClick) {
    if (navigator.appName == 'Netscape' && document.layers != null) {
		name = "document.layers['" + lname + "']";
      	theObj = eval(name);
      	if (theObj) theObj.visibility = 'show';
     	} 
	else if (document.all != null) { 
		name = "document.all['" + lname + "']";
		theObj = eval(name);
		if (theObj) theObj.style.visibility = 'visible';
		}
	}
}

function hideLayer(lname) {
 	var theObj,name;

	if(lname != document.lastClick) {
    if (navigator.appName == 'Netscape' && document.layers != null) {
		name = "document.layers['" + lname + "']";
      	theObj = eval(name);
      	if (theObj) theObj.visibility = 'hide';
     	} 
	else if (document.all != null) { 
		name = "document.all['" + lname + "']";
		theObj = eval(name);
		if (theObj) theObj.style.visibility = 'hidden';
		}
 }
}

function selectLayer(fname,lname) {
	var theObj,doc,name;

	name = "parent." + fname + ".document";
	doc = eval(name);
    if (navigator.appName == 'Netscape' && doc.layers != null) {
		for (i=0; i<doc.layers.length; i++) {
			if (doc.layers[i].name != lname && doc.layers[i].name != 'LL') {
				doc.layers[i].visibility = 'hide';
			}
    	 }
		if(lname) {
			doc.lastClick = lname;
			theObj = eval(name + ".layers['" + lname + "']");
    	  	if (theObj) theObj.visibility = 'show';
		}
	}
	else if (doc.all != null) { 
		for (i=0; i<doc.all.tags('DIV').length; i++) {
				if (doc.all.tags('DIV')[i].getAttribute('id') != lname && doc.all.tags('DIV')[i].getAttribute('id') != 'LL')
					doc.all.tags('DIV')[i].style.visibility = 'hidden';
    	}
		if(lname) {
			doc.lastClick = lname;
			theObj = eval(name + ".all['" + lname + "']");
    	  	if (theObj) theObj.style.visibility = 'visible';
		}
	}
}

function nav(leftLoc,mainLoc) {

	if(leftLoc != '')
		parent.leftFrame.location = leftLoc;
	if(mainLoc != '')
		parent.mainFrame.location = mainLoc;
}

function isblank(s)
{
	for(var i = 0; i < s.length; i++) {
		var c = s.charAt(i);
		if ((c != ' ') && (c != '\n') && (c != '\t')) return false;
	}
	return true;
}

function verify(f,oblig) 
{
	var err = false;
	var msg;
	var n = f.elements.length;

	for(var i = 0; i < oblig.length; i++) {
		var e = f.elements[oblig[i]];
	
		// Traitement des champs texte
		if (e.type == "text" || e.type == "textarea") {
			if ((e.value == null) || (e.value == "") || isblank(e.value)) {
			err = true;
			}
		}
		
		// Traitement des menus dŽroulants
		if (e.type == "select-one") {
			if (e.selectedIndex == 0)  {
				err = true;
			}
		}	
		
		// Traitement des cases ˆ cocher
		if (e.type == "checkbox") {
			var chk = false;
			var j = oblig[i];
			do {
				if (f.elements[j].checked) {
					chk = true;
				}
			} while ((++j < n) && (f.elements[j].type == "checkbox"));
			if (!chk) err = true;
		}
		
		// Traitement des boutons radio
		if (e.type == "radio") {
			var chk = false;
			var j = oblig[i];
			do {
				if (f.elements[j].checked) {
					chk = true;
				}
			} while ((++j < n) && (f.elements[j].type == "radio"));
			if (!chk) err = true;
		}
	}

	if (!err) {
		f.submit();
	}
	else {
		msg  = "Ce formulaire n'a pu etre transmis  : \n";
		msg += "\nles champs obligatoires n'ont pas tous ete remplis\n";

		alert(msg);
	}
}