var t;
var w = 264;
var h = 263;
var y_pos = -200;
var x_pos = 374;
var sign = "-";
var top = -30;
var left = 374;
var arVersion = navigator.appVersion.split("MSIE");
var version = parseFloat(arVersion[1]);
function showContest() {
	y_pos = y_pos + 5;
	document.getElementById('contest_img').style.top = y_pos + 'px';
	if (y_pos < -30) {
		t = setTimeout("showContest()", 25);
	} else {
		t = setTimeout("moveContest()", 25);
	}
}
function hideContest() {
	top = top - 5;
	document.getElementById('contest_img').style.top = top + 'px';
	if (y_pos > -200) {
		t = setTimeout("hideContest()", 25);
	}
}
function moveContest() {
	if (w == 244) {
		sign = "+";
	} else if (w == 264) {
		sign = "-"
	} else {
		sign = sign;
	}

	if (sign == "+") {
		w = w + 1;
		h = h + 1;
		top = top - 1;			
		left = left - 1;	
	} else {
		w = w - 1;
		h = h - 1;
		top = top + 1;		
		left = left + 1;
	}
	if(document.getElementById('contest_img')){
		document.getElementById('contest_img').style.top = top + 'px';
		document.getElementById('contest_img').style.marginLeft = left + 'px';
		if (version >= 5.5 && version < 7.0) {
			document.getElementById('contest_img').style.width = w;
			document.getElementById('contest_img').style.height = h;
		} else {
			document.getElementById('contest_img').width = w;
			document.getElementById('contest_img').height = h;
		}
		t = setTimeout("moveContest()", 40);
	}
}