var pixHomeMenus= new Array();
var prev_roll=null;
var prev_num=0;

for(var i=0; i< 8; i++) {
	pixHomeMenus[i]=new Image();
}

pixHomeMenus[0].src="images/menu_acheterbien_off.jpg";
pixHomeMenus[1].src="images/menu_acheterbien_on.jpg";
pixHomeMenus[2].src="images/menu_fairetravaux_off.jpg";
pixHomeMenus[3].src="images/menu_fairetravaux_on.jpg";
pixHomeMenus[4].src="images/menu_investir_off.jpg";
pixHomeMenus[5].src="images/menu_investir_on.jpg";
pixHomeMenus[6].src="images/menu_assurerbiens_off.jpg";
pixHomeMenus[7].src="images/menu_assurerbiens_on.jpg";





var defaultBaseClass="defaultRoll";
var prevRoll=null;
var prevContextMenu=null;
var prevContextPush=null;


function changeBkgrd(bkgrd) {
	if(document.getElementById) {
		var displayDiv=document.getElementById("zoneRolls");
		displayDiv.className=bkgrd;
	}
}

function RollImg(img,num) {
	if(prev_roll!=null) {
		prev_roll.src=pixHomeMenus[prev_num].src;
	}
	var contexts=new Array();
	switch(num) {
		case 1:
		changeBkgrd("tmp_bkgrd_bleu_menu");
		contexts[0]="acheterbien_ContextMenu";
		
		break;
		
		case 3:
		changeBkgrd("tmp_bkgrd_bleu_menu");
		contexts[0]="fairetravaux_ContextMenu";
		break;
		
		case 5:
		changeBkgrd("tmp_bkgrd_bleu_menu");
		contexts[0]="investir_ContextMenu";
		break;
		
		case 7:
		changeBkgrd("tmp_bkgrd_bleu_menu");
		contexts[0]="assurerbiens_ContextMenu";
		break;
		
		
	}
	setContextNav(contexts);
	document.images[img].src=pixHomeMenus[num].src;
	prev_roll=document.images[img];
	prev_num=num-1;
}

function setContextNav(arr) {
	if(prevContextMenu != null)prevContextMenu.style.display="none";
	if(prevContextPush != null)prevContextPush.style.display="none";
	if(arr.length >0 && document.getElementById) {
		for(var i=0;i<arr.length;i++) {
			var displayedContext=eval("document.getElementById(\""+arr[i]+"\")");
			displayedContext.style.display="block";
			if(i==0)prevContextMenu=displayedContext;
			else prevContextPush=displayedContext;
		}
	}
}

function initDisplayAreas() {
	if(document.getElementById) {
		prevContextMenu=document.getElementById("");
		prevContextPush=document.getElementById("");
	}
}