var popctrl=new Array();
var elem=new Array();
var opc=new Array();
var incrementor=new Array();
var fadeoutctrl=new Array();

var fadein_amount=10;
var fadeout_amount=10;
var popspeed=20;
var fadespeed=20;

function imagePop(targeturl, w, h) {	popwin(targeturl, w, h, "img", "no");	}

function showsubmenu(nr)
	{
	// Init
	if(typeof(elem[nr])=="undefined") 
		{
		if(!(elem[nr]=document.getElementById("submenu"+nr))) { elem[nr]=false; }
		}		
	if(typeof(incrementor[nr])=="undefined") { incrementor[nr]=0; }
	
	// Start
	if(elem[nr])
		{
		if(!opc[nr]) { opc[nr] = 0; }
		clearInterval(fadeoutctrl[nr]);
		if(opc[nr] == 0)
			{
			opc[nr]=1;
			set_submen_opacity(nr);
			}
		if(incrementor[nr] < 1)
			{
			clearInterval(popctrl[nr]);
			incrementor[nr]=fadein_amount;
			popctrl[nr]=setTimeout("submenu_fade("+nr+");",popspeed);
			}
		}	
	}

function hidesubmenu(nr)
	{
	if(elem[nr])
		{
		fadeoutctrl[nr]=setTimeout("hidesubmenu_now("+nr+");", 30);
		}
	}

function hidesubmenu_now(nr)
	{
	incrementor[nr]= -fadeout_amount;
	popctrl[nr]=setTimeout("submenu_fade("+nr+");", popspeed);
	}

function submenu_fade(nr)
	{
	incrdecr=incrementor[nr];
	if(elem[nr])
		{
		opc[nr] += incrdecr;
		if(opc[nr] < 0)
			{
			opc[nr]=0;
			set_submen_opacity(nr);
			incrementor[nr]=0;
			}
		else if(opc[nr] > 100)
			{
			opc[nr]=100;
			set_submen_opacity(nr);
			incrementor[nr]=0;
			}
		else
			{
			set_submen_opacity(nr);
			popctrl[nr]=setTimeout("submenu_fade("+nr+", "+incrdecr+");",fadespeed);
			}
		}
	}

function set_submen_opacity(nr)
	{
	if(elem[nr])
		{
		op=opc[nr];
		elem[nr].style.opacity=(op/100);
		elem[nr].style.filter='alpha(opacity='+op+')';
		if(op < 1)
			{
			elem[nr].style.visibility = "hidden";
			elem[nr].style.top="-1000px";
			}
		else
			{
			elem[nr].style.visibility = "visible";
			elem[nr].style.top="20px";
			}
		}
	}