// script trouvé sur http://www.javascriptfr.com/code.aspx?ID=16291

var isDOM = ( document.getElementById ? true : false ); 
var isIE4 = ( (document.all && !isDOM) ? true : false );
var isNS4 = ( document.layers ? true : false );

function getRef(id) {
	if ( isDOM ) {
		return document.getElementById(id);
	}
	if ( isIE4 ) {
		return document.all[id];
	}
	if ( isNS4 ) {
		return document.layers[id];
	}
}

function getSty(id) {
	return ( isNS4 ? getRef(id) : getRef(id).style );
} 

var popTimer = 0;
var litNow = new Array();

function popOver(menuNum, itemNum) {
	clearTimeout(popTimer);
	hideAllBut(menuNum);
	litNow = getTree(menuNum, itemNum);
	changeCol(litNow, true);
	targetNum = menu[menuNum][itemNum].target;
	if ( targetNum > 0 ) {
		thisX = parseInt(menu[menuNum][0].ref.left) + parseInt(menu[menuNum][itemNum].ref.left);
		thisY = parseInt(menu[menuNum][0].ref.top) + parseInt(menu[menuNum][itemNum].ref.top);
		with ( menu[targetNum][0].ref ) {
			left = parseInt(thisX + menu[targetNum][0].x);
			top = parseInt(thisY + menu[targetNum][0].y);
			visibility = 'visible';
		}
	}
}

function popOut(menuNum, itemNum) {
	if ( (menuNum == 0) && !menu[menuNum][itemNum].target ) {
		hideAllBut(0)
	} else {
		popTimer = setTimeout('hideAllBut(0)', 500);
	}
}

function getTree(menuNum, itemNum) {
	itemArray = new Array(menu.length);
	while ( 1 ) {
		itemArray[menuNum] = itemNum;
		if ( menuNum == 0 ) {
			return itemArray;
		}
		itemNum = menu[menuNum][0].parentItem;
		menuNum = menu[menuNum][0].parentMenu;
	}
}

function changeCol(changeArray, isOver) {
	for ( menuCount = 0; menuCount < changeArray.length; menuCount++ ) {
		if ( changeArray[menuCount] ) {
			newCol = ( isOver ? menu[menuCount][0].overCol : menu[menuCount][0].backCol );
			with ( menu[menuCount][changeArray[menuCount]].ref ) {
				if ( isNS4 ) {
					bgColor = newCol;
				} else {
					backgroundColor = newCol;
				}
			}
		}
	}
}

function hideAllBut(menuNum) {
	var keepMenus = getTree(menuNum, 1);
	for ( count = 0; count < menu.length; count++ ) {
		if ( !keepMenus[count] ) {
			menu[count][0].ref.visibility = 'hidden';
		}
	}
	changeCol(litNow, false);
}

function Menu(isVert, popInd, x, y, width, overCol, backCol, borderClass, textClass) {
	this.isVert = isVert;
	this.popInd = popInd
	this.x = x;
	this.y = y;
	this.width = width;
	this.overCol = overCol;
	this.backCol = backCol;
	this.borderClass = borderClass;
	this.textClass = textClass;
	this.parentMenu = null;
	this.parentItem = null;
	this.ref = null;
}

function Item(text, href, frame, length, spacing, target) {	
	this.text = text;
	this.href = href;
	this.frame = frame;
	this.length = length;
	this.spacing = spacing;
	this.target = target;
	this.ref = null;
}

function writeMenus() {
	if ( !isDOM && !isIE4 && !isNS4 ) {
		return;
	}
	for ( currMenu = 0; currMenu < menu.length; currMenu++) with (menu[currMenu][0] ) {
		var str = '', itemX = 0, itemY = 0;

		for ( currItem = 1; currItem < menu[currMenu].length; currItem++ ) with ( menu[currMenu][currItem] ) {
			var itemID = 'menu'+currMenu+'item'+currItem;
			var w = ( isVert ? width : length );
			var h = ( isVert ? length : width );
			if ( isDOM || isIE4 ) {
				str += '<div id="'+itemID+'" style="position: absolute; left: '+itemX+'; top: '+itemY+'; ';
				str += 'width: '+w+'; height: '+h+'; visibility: inherit; ';
				if ( backCol ) {
					str += 'background: '+backCol+'; ';
				}
				str += '" ';
			}
			if ( isNS4 ) {
				str += '<layer id="'+itemID+'" left="'+itemX+'" top="'+itemY+'" ';
				str += 'width="'+w+'" height="'+h+'" visibility="inherit" ';
				if ( backCol ) {
					str += 'bgcolor="'+backCol+'" ';
				}
			}
			if ( borderClass ) {
				str += 'class="'+borderClass+'" ';
			}

			str += 'ONMOUSEOVER="popOver('+currMenu+','+currItem+') " ';
			str += 'ONMOUSEOUT="popOut('+currMenu+','+currItem+')">';
			str += '<table width="'+(w - 8)+'" border="0" cellspacing="0" cellpadding="'+( !isNS4 && borderClass ? 2 : 0 )+'">';
			str += '<tr><td width=1 nowrap></td><td align="left" height="'+(h - 7)+'">';
			str += ( href ? '<a class="'+textClass+'" href="'+href+'"'+( frame ? ' target="'+frame+'">' : '>')+text+'</a></td>' :  '<a class="'+textClass+'">'+text+'</a></td>');

			if ( target > 0 ) {
				menu[target][0].parentMenu = currMenu;
				menu[target][0].parentItem = currItem;
				if (popInd) {
					str += '<td class="'+textClass+'" align="right">'+popInd+'</td>';
				}
			}
			str += '</tr></table>'+( isNS4 ? '</layer>' : '</div>' );
			if ( isVert ) {
				itemY += length + spacing;
			} else {
				itemX += length + spacing;
			}
		}
		if (isDOM) {
			var newDiv = document.createElement('div');
			document.getElementsByTagName('body').item(0).appendChild(newDiv);
			newDiv.innerHTML = str;
			ref = newDiv.style;
			ref.position = 'absolute';
			ref.visibility = 'hidden';
		}

		if (isIE4) {
			document.body.insertAdjacentHTML('beforeEnd', '<div id="menu'+currMenu+'div" '+'style="position: absolute; visibility: hidden">'+str+'</div>');
			ref = getSty('menu'+currMenu+'div');
		}

		if (isNS4) {
			ref = new Layer(0);
			ref.document.write(str);
			ref.document.close();
		}

		for (currItem = 1; currItem < menu[currMenu].length; currItem++) {
			itemName = 'menu'+currMenu+'item'+currItem;
			if (isDOM || isIE4) {
				menu[currMenu][currItem].ref = getSty(itemName);
			}
			if (isNS4) {
				menu[currMenu][currItem].ref = ref.document[itemName];
			}
   		}
	}

	with(menu[0][0]) {
		ref.left = x;
		ref.top = y;
		ref.visibility = 'visible';
	}
}