function objGet(x)

{var d=document;x=d.getElementById?d.getElementById(x):d.all?d.all[x]:d[x]?d[x]:d.layers?d.layers[x]:null;return x;}



function objd(x,z) {objGet(x).style.display=z?"block":"none";}

function objv(x,z) {objGet(x).style.visibility=z?"visible":"hidden";}



var funkce=2;

var numMenu=6;

var idecka=new Array(numMenu); //[step],[show/hide],[width],[height]

var steps=11;

var effectline=[0,0];

var line2=[

[0, 2,10,21,35,50,65,79,90,98,100],	//cosinus   0.5-cos(18*n)/2

];

var timerID=new Array(numMenu);

var timerSpeed=50;



function nextStep(e,i,n)

{var j;

	j=idecka[i][0];

	j+=n;

	j=j<steps?(j<0?0:j):steps-1;

	idecka[i][0]=j;

	idecka[i][1]=(j>0 && j<steps)?1:0;

	return line2[effectline[e]][j];

}



function hodinyStop(i)   {clearTimeout(timerID[i])}

function hodinyStart(t,i){if (idecka[i][1]) {t=(t?"ukaz":"skryj")+"("+i+")";timerID[i]=setTimeout(t,timerSpeed)}}



function ukaz(i) {

hodinyStop(i);

var j,k,q;

q="sub"+i;

if (funkce>1) {j=nextStep(1,i,1);}

switch (funkce)

{

case 0:	objd(q,1);

	break;

case 1:	changeOpac(q,100);

	objd(q,1);

	idecka[i][1]=0;

	idecka[i][0]=steps-1;

	break;

case 2:	changeOpac(q,j);

	break;

case 3:	changelineHeight(q,j);

	break;

case 4:	changebottom(q,i,j);

	break;

case 5:	changefontSize(q,j);

	changelineHeight(q,j);

	break;

case 6:	changeclip1(q,i,j);

	objflow(q,"hidden");

	break;

case 7:	changeclip2(q,i,j);

	objflow(q,"hidden");

	break;

case 8:	changeclip3(q,i,j);

	objflow(q,"hidden");

	break;

}

if (funkce>1) {objd(q,(j>0?1:0));hodinyStart(1,i);}

}



function skryj(i){

hodinyStop(i);

var j,k,q;

q="sub"+i;

if (funkce>0) {j=nextStep(1,i,-1);}

switch (funkce)

{

case 0:	objd(q,0);

	break;

case 1:	changeOpac(q,j);

	break;

case 2:	changeOpac(q,j);

	break;

case 3:	changelineHeight(q,j);

	break;

case 4:	changebottom(q,i,j);

	break;

case 5:	changefontSize(q,j);

	changelineHeight(q,j);

	break;

case 6:	changeclip1(q,i,j);

	objflow(q,"hidden");

	break;

case 7:	changeclip2(q,i,j);

	objflow(q,"hidden");

	break;

case 8:	changeclip3(q,i,j);

	objflow(q,"hidden");

	break;

}

if (funkce>0) {objd(q,(j>0?1:0));hodinyStart(0,i);}

}





function objBottom(x,z)	{objGet(x).style.bottom=z;}

function objHeight(x,z)	{objGet(x).style.height=z;}

function objlineHeight(x,z){objGet(x).style.lineHeight=z;}

function objfontSize(x,z){objGet(x).style.fontSize=z;}

function objclip(x,z)	{objGet(x).style.clip=z;}

function objflow(x,z)	{objGet(x).style.overflow=z;}



function changeOpac(id,opacity)

{var s,o;

	s=objGet(id).style;

	o=opacity;

	o=0.009*(o==100?99.9:o);	//FF bug 99.9

	s.opacity      = o;

	s.MozOpacity   = o;

	s.KHTMLOpacity = o;

	s.filter       = "alpha(opacity=" +opacity+ ")";

}



function changeHeight(id,i,height)

{objHeight(id,parseInt(height/100*idecka[i][3])+"px");}



function changelineHeight(id,height)

{objlineHeight(id,height/100*1.25+"em");}



function changefontSize(id,height)

{objfontSize(id,height+"%");}



function changebottom(id,i,height)

{var x,y;

y=idecka[i][3];

x=height/100*y;

objBottom(id,parseInt(4-x*1.1)+"px");

objclip(id,'rect('+parseInt((y-x)*1.1)+'px auto auto 0px)');

objflow(id,"hidden");

}



function changeclip1(id,i,height)

{objclip(id,'rect(0px auto '+parseInt(height/100*idecka[i][3]*1.1)+'px 0px)');};



function changeclip2(id,i,size)

{objclip(id,'rect(0px '+parseInt(size/100*idecka[i][2]*1.1)+'px auto 0px)');};



function changeclip3(id,i,size)

{objclip(id,'rect(0px '+parseInt(size/100*idecka[i][2]*1.1)+'px '+parseInt(size/100*idecka[i][3]*1.1)+'px 0px)');};



function reseteffect()

{var i,q,o;

for(i=0;i<numMenu;i++)

	{

	q="sub"+i;

	changeOpac(q,100);

	objHeight(q,"auto");

	changefontSize(q,100);

	changelineHeight(q,100);

	objBottom(q,"auto");

	objclip(q,"rect(auto auto auto auto)");

	objflow(q,"visible");

	}

}



function init()

{var i,o,q;

for(i=0;i<numMenu;i++)

	{

	q="sub"+i;

	o=objGet(q);idecka[i]=[0,0,o.offsetWidth,o.offsetHeight];

	objd(q,0);objv(q,1);

	timerID[i]=null;

	}

}