Tip: you can modify some code before running
<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>Many ants crawling to the mouse</title></head><body> <style type="text/css">. Ant {height: 16px; position: absolute; visibility: hidden; width: 16px ;}</style><SCRIPT LANGUAGE="JavaScript">Var dir = "images/"; var images = new Array (dir + "antdl.gif", dir + "antdn.gif", dir + "antdr.gif", dir + "antlt.gif ", dir + "antrt.gif", dir + "antul.gif", dir + "antup.gif", dir + "antur.gif"); var isMinNS4 = (document. layers )? 1: 0; var isMinIE4 = (document. all )? 1: 0; var _ LBimgList; var _ LBimgCount; var _ LBbase = "LBbase"; var _ LBlow = "LBlow"; var _ LBhigh = "LBhigh"; var _ LBwidth; var _ LBheight; var _ LBbaseLayer; var _ LBlowLayer; var _ LBhighLayer; function createLoadBar (width, height, bdSize, bdColor, bgColor, fgColor, fontFace, fontSize, text) {var txtLow, txtHigh, tblStart, tblEnd; var str; txtLow ='<font color="' + fgColor + '" face="' + fontFace + '" size=' + fontSize + '>'+ Text +'</font>'; Txthweigh ='<font color="' + bgColor + '" face="' + fontFace + '" size=' + fontSize + '>'+ Text +'</font>'; TblStart ='<table border=0 cellpadding=0 cellspacing=0 height=100% width=100%><tr valign="center"><td align="center">'; TblEnd ='</td></tr></table>'; If (isMinNS4) str ='<layer name="' + _LBbase + '" bgcolor="' + bdColor + '" width=' + width + ' height=' + height + ' visibility="hide">N' +'<layer name="' + _LBlow + '" bgcolor="' + bgColor + '" left=' + bdSize + ' top=' + bdSize + ' width=' + (width - 2 * bdSize) + ' height=' + (height - 2 * bdSize) + '>'+ TblStart + txtLow + tblEnd +'</layer>N' +'<layer name="' + _LBhigh + '" bgcolor="' + fgColor + '" left=' + bdSize + ' top=' + bdSize + ' width=' + (width - 2 * bdSize) + ' height=' + (height - 2 * bdSize) + '>'+ TblStart + txtHigh + tblEnd +'</layer>N' +'</layer>'; If (isMinIE4) str ='<div id="' + _LBbase + '" + bdColor + '; width:' + width + 'px; height:' + height + 'px; visibility:hidden;">n'+ ' <div id="' + _LBlow + '" + bgColor + '; left:' + bdSize + 'px; top:' + bdSize + 'px; width:' + (width - 2 * bdSize) + 'px; height:' + (height - 2 * bdSize) + 'px;">'+ TblStart + txtLow + tblEnd +'</div>N' +'<div id="' + _LBhigh + '" + fgColor + '; left:' + bdSize + 'px; top:' + bdSize + 'px; width:' + (width - 2 * bdSize) + 'px; height:' + (height - 2 * bdSize) + 'px;">' + tblStart + txtHigh + tblEnd + '</div>n'+ '</div>';document.writeln(str);_LBwidth = width - 2 * bdSize;_LBheight = height - 2 * bdSize;}function startLoadBar(srcList, x, y) {var i, w, h;if (isMinNS4) {_LBbaseLayer = document.layers[_LBbase];_LBlowLayer = _LBbaseLayer.document.layers[_LBlow];_LBhighLayer = _LBbaseLayer.document.layers[_LBhigh];}if (isMinIE4) {_LBbaseLayer = eval('document.all.' + _LBbase);_LBlowLayer = eval('document.all.' + _LBlow);_LBhighLayer = eval('document.all.' + _LBhigh);}if (isMinNS4) {w = window.innerWidth;h = window.innerHeight;}if (isMinIE4) {w = document.body.clientWidth;h = document.body.clientHeight;}if (x == null)x = Math.round((w - _LBwidth) / 2);if (y == null)y = Math.round((h - _LBheight) / 2);moveLayerTo(_LBbaseLayer, x, y);clipLayer(_LBhighLayer, 0, 0, 0, _LBheight);showLayer(_LBbaseLayer);_LBimgCount = 0;_LBimgList = new Array();for (i = 0; i < srcList.length; i++) {_LBimgList[i] = new Image();_LBimgList[i].onabort = _LBupdate;_LBimgList[i].onerror = _LBupdate;_LBimgList[i].onload = _LBupdate;}for (i = 0; i < srcList.length; i++)_LBimgList[i].src = srcList[i];}function endLoadBar() {}function _LBupdate() {var pct;_LBimgCount++;pct = _LBimgCount / _LBimgList.length;clipLayer(_LBhighLayer, 0, 0, Math.round(pct * _LBwidth), _LBheight);if (_LBimgCount == _LBimgList.length) {setTimeout('hideLayer(_LBbaseLayer)', 500);endLoadBar();}}function moveLayerTo(layer, x, y) {if (isMinNS4)layer.moveTo(x, y);if (isMinIE4) {layer.style.left = x;layer.style.top = y;}}function hideLayer(layer) {if (isMinNS4)layer.visibility = "hide";if (isMinIE4)layer.style.visibility = "hidden";}function getWindowWidth() {if (isMinNS4)return(window.innerWidth);if (isMinIE4)return(document.body.offsetWidth);return(-1);}function getWindowHeight() {if (isMinNS4)return(window.innerHeight);if (isMinIE4)return(document.body.offsetHeight);return(-1);}function getPageScrollX() {if (isMinNS4)return(window.pageXOffset);if (isMinIE4)return(document.body.scrollLeft);return(-1);}function getPageScrollY() {if (isMinNS4)return(window.pageYOffset);if (isMinIE4)return(document.body.scrollTop);return(-1);}function getHeight(layer) {if (isMinNS4) {if (layer.document.height)return(layer.document.height);elsereturn(layer.clip.bottom - layer.clip.top);}if (isMinIE4) {if (false && layer.style.pixelHeight)return(layer.style.pixelHeight);elsereturn(layer.clientHeight);}return(-1);}function getWidth(layer) {if (isMinNS4) {if (layer.document.width)return(layer.document.width);elsereturn(layer.clip.right - layer.clip.left);}if (isMinIE4) {if (layer.style.pixelWidth)return(layer.style.pixelWidth);elsereturn(layer.clientWidth);}return(-1);}function getLeft(layer) {if (isMinNS4)return(layer.left);if (isMinIE4)return(layer.style.pixelLeft);return(-1);}function getTop(layer) {if (isMinNS4)return(layer.top);if (isMinIE4)return(layer.style.pixelTop);return(-1);}function getRight(layer) {if (isMinNS4)return(layer.left + getWidth(layer));if (isMinIE4)return(layer.style.pixelLeft + getWidth(layer));return(-1);}function getBottom(layer) {if (isMinNS4)return(layer.top + getHeight(layer));else if (isMinIE4)return(layer.style.pixelTop + getHeight(layer));return(-1);}function moveLayerBy(layer, dx, dy) {if (isMinNS4)layer.moveBy(dx, dy);if (isMinIE4) {layer.style.pixelLeft += dx;layer.style.pixelTop+= dy;}}function showLayer(layer) {if (isMinNS4)layer.visibility = "show";if (isMinIE4)layer.style.visibility = "visible";}function clipLayer(layer, clipleft, cliptop, clipright, clipbottom) {if (isMinNS4) {layer.clip.left = clipleft;layer.clip.top= cliptop;layer.clip.right= clipright;layer.clip.bottom = clipbottom;}if (isMinIE4)layer.style.clip = 'rect(' + cliptop + ' ' +clipright + ' ' + clipbottom + ' ' + clipleft +')';}var mouseX = 0;var mouseY = 0;if (isMinNS4)document.captureEvents(Event.MOUSEMOVE);document.onmousemove = getMousePosition;function init() {startLoadBar(images);}function getMousePosition(e) {if (isMinNS4) {mouseX = e.pageX;mouseY = e.pageY;}if (isMinIE4) {mouseX = event.clientX + document.body.scrollLeft;mouseY = event.clientY + document.body.scrollTop;}return true;}var ants = new Array(8);function endLoadBar() {var i;for (i = 0; i < ants.length; i++) {if (isMinNS4) {ants[i] = document.layers["ant" + (i + 1)];ants[i].image = ants[i].document.images["antimg" + (i + 1)];}if (isMinIE4) {ants[i] = eval('document.all.ant' + (i + 1));ants[i].image = document.images["antimg" + (i + 1)];}initAnt(i);showLayer(ants[i]);}updateAnts();}function initAnt(n) {var s, x, y;x = Math.floor(Math.random() * getWindowWidth());y = Math.floor(Math.random() * getWindowHeight());s = Math.floor(Math.random() * 4);if (s == 0)x = -getWidth(ants[n]);if (s == 1)x = getWindowWidth();if (s == 2)y = -getHeight(ants[n]);if (s == 3)y = getWindowHeight();x += getPageScrollX();y += getPageScrollY();moveLayerTo(ants[n], x, y);}function updateAnts() {var i, dx, dy, theta, d;d = 3;for (i = 0; i < ants.length; i++) {dx = mouseX - getLeft(ants[i]);dy = mouseY - getTop(ants[i]);theta = Math.round(Math.atan2(-dy, dx) * 180 / Math.PI);if (theta < 0)theta += 360;if (Math.abs(dx) < d && Math.abs(dy) < d)initAnt(i);else if (theta > 22.5 && theta <= 67.5) {moveLayerBy(ants[i], d, -d);ants[i].image.src = dir+"antur.gif";}else if (theta > 67.5 && theta <= 112.5) {moveLayerBy(ants[i], 0, -d);ants[i].image.src = dir+"antup.gif";}else if (theta > 112.5 && theta <= 157.5) {moveLayerBy(ants[i], -d, -d);ants[i].image.src = dir+"antul.gif";}else if (theta > 157.5 && theta <= 202.5) {moveLayerBy(ants[i], -d, 0);ants[i].image.src = dir+"antlt.gif";}else if (theta > 202.5 && theta <= 247.5) {moveLayerBy(ants[i], -d, d);ants[i].image.src = dir+"antdl.gif";}else if (theta > 247.5 && theta <= 292.5) {moveLayerBy(ants[i], 0, d);ants[i].image.src = dir+"antdn.gif";}else if (theta > 292.5 && theta <= 337.5) {moveLayerBy(ants[i], d, d);ants[i].image.src = dir+"antdr.gif";}else {moveLayerBy(ants[i], d, 0);ants[i].image.src = dir+"antrt.gif";}}setTimeout('updateAnts()', 50);return;}</script><body OnLoad="init()"><script language="JavaScript">createLoadBar(240, 20, 1, "#000000", "#cccccc", "#999999", "MS Sans serif,Arial,Helvetica", 1, "<b>Loading ants, please wait...</b>");</script><div id="ant1" class="ant"></div><div id="ant2" class="ant"></div><div id="ant3" class="ant"></div><div id="ant4" class="ant"></div><div id="ant5" class="ant"></div><div id="ant6" class="ant"></div><div id="ant7" class="ant"></div><div id="ant8" class="ant"></div></body></html>
Tip: you can modify some code before running
