
<!--

//created by Vjekoslav Begovic (vjbegovic@inet.hr

var href;
function showBlackHole(){
	var obj = document.getElementById("hole").style;
	obj.position = 'absolute';
	obj.top = Math.round((document.body.clientHeight - document.imgHole.height)/2);
	obj.left = Math.round((document.body.clientWidth - document.imgHole.width)/2);
	obj.visibility = 'visible';
}

function fitToScreen(){
	var obj = document.getElementById("doc").style;
	obj.position = 'absolute';
	obj.top = 0;
	obj.height = document.body.clientHeight;
	obj.width = document.body.clientWidth;
	obj.overflow = 'hidden';
}

function initImplode(){
	if ((!document.all) || (!document.getElementById)){
	document.location.href = href;
	return;
	}
	showBlackHole();
	fitToScreen();
	var docdiv = document.getElementById("doc").style;
	x1 = parseInt(docdiv.left);
	y1 = parseInt(docdiv.top);
	x2 = x1 + docdiv.width;
	y2 = y1;
	x3 = x2;
	y3 = y1 + docdiv.height;
	x4 = x1;
	y4 = y3;
		
	imgdiv = document.getElementById("hole").style;
	a1 = parseInt(imgdiv.left);
	b1 = parseInt(imgdiv.top);
	a2 = a1 + document.imgHole.width;
	b2 = b1;
	a3 = a2;
	b3 = b2 + document.imgHole.height;
	a4 = a1;
	b4 = b3;	
	oldWidth = parseInt(docdiv.width);
	oldHeight = parseInt(docdiv.height);
	blackTimer = null;
	i = x1 + 1;
	implode();
}

function implode(){
	var obj = document.getElementById("doc").style;
	if ((parseInt(obj.left) >= a1+Math.ceil(parseInt(document.getElementById('imgHole').height) / 2)) || (parseInt(obj.top) >= b1+Math.ceil(parseInt(document.getElementById('imgHole').width) / 2))){
		obj.top = b1 + Math.ceil(parseInt(document.getElementById('imgHole').width) / 2);
		obj.left = a1 + Math.ceil(parseInt(document.getElementById('imgHole').height) / 2);
		obj.width = 0;
		obj.height = 0;
		stop();
		return;
	}
	obj.left = i;
	try{
	obj.width = oldWidth - 2*i;
	}
	catch(e){}
	var j = Math.round(((y1-b1)/(x1-a1))*i);
	obj.top = j;
	try{
	obj.height = oldHeight - 2*j;
	}
	catch(e){}
	i+=10;
	blackTimer = window.setTimeout("implode()", 1);
}

function stop(){
	window.clearTimeout(blackTimer);
	document.location.href = href;
}

function hyperlink(ref){
	href = ref;

	initImplode();
}

-->