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<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd "> <html xmlns=" http://www.w3.org/1999/xhtml "> <head> <meta http-equiv=" Content-type "content=" text/html; Charset=utf-8 "/> <title>js Fireworks effect (object-oriented) </title> <style type=" Text/css "> Html,body{overflow: Hidden;} body,div,p{margin:0;padding:0} body{background: #000; font:12px/1.5 arial;color: #7A7A7A;} a{text-decoration:none;o Utline:none;} #tips, #copyright {position:absolute;width:100%;height:50px;text-align:center;background: #171717; border:2px solid #484848;} #tips {top:0;border-width:0 0 2px;} #tips a{font:14px/30px arial;color: #FFF background: #F06;d isplay:inline-block;margin:10px 5px 0;padding:0 15px;border-radius:15px;} #tips a.active{background: #FE0000;} #copyright {bottom:0;line-height:50px;border-width:2px 0 0;} #copyright a{color:# Fff;background: #7A7A7A;p adding:2px 5px;border-radius:10px;} #copyright a:hover{background: #F90;} p{poSition:absolute;top:55px;width:100%;text-align:center;} </style> <script type= "Text/javascript" > var FGM = {On:function (element, type, handler) {return Element.add EventListener? Element.addeventlistener (type, Handler, false): Element.attachevent ("on" + Type, Handler)}, Un:function (element, type, Handler) {return element.removeeventlistener? Element.removeeventlistener (Type, Handler, false): Element.detachevent (' on ' + type, handler)}, Bind:function (object, handler) {return function () {return Handler.apply (object, arguments)} }, Randomrange:function (lower, Upper) {return Math.floor (Math.random () * (Upper-lower + 1) + lower)}, Getrancolor:fu Nction () {var str = this.randomrange (0, 0xFFFFFF). ToString () while (Str.length < 6) str = "0" + str; return "#" + St R}}; Initialize Object function FireWorks () {this.type = 0; this.timer = null; this.fnmanual = Fgm.bind (this, this.manual)} FIREWORKS.P Rototype = {initialize:function () {cleartimeout (this.timer); fgm.un(Document, "click", This.fnmanual); Switch (this.type) {case 1:fgm.on (document, ' click ', this.fnmanual); break; case 2:this.auto (); }, Manual:function (event) {event = Event | | window.event this.__create__ ({x:event.clientx, y:event.clienty}); To:function () {var that = this; That.timer = settimeout (function () {that.__create__ ({x:fgm.randomrange). DOCUMENTELEMENT.CLIENTWIDTH-50), Y:fgm.randomrange (document.documentelement.clientheight-150)}) That.auto (); }, Fgm.randomrange (900, 1100))}, __create__: function (param) {var that = this; var oentity = null; var ochip = null; VA R achip = []; var timer = null; var Ofrag = document.createdocumentfragment (); Oentity = document.createelement ("div"); With (Oentity.style) {position = ' absolute '; top = document.documentElement.clientHeight + ' px '; left = param.x + ' px '; WI DTH = "4px"; Height = "30px"; Borderradius = "4px"; Background = Fgm.getrancolor (); }; Document.body.appendChild (oentity); OentitY.timer = setinterval (function () {oEntity.style.top = oentity.offsettop-20 + "px"; if (Oentity.offsettop <=) {clearinterval (Oentity.timer); Document.body.removeChild (oentity); (function () {///between 50-100 randomly generated fragments//due to the low efficiency of IE browser processing, the random range reduced to 20-30//automatic fireworks release, the random range reduced to 20-30 var len = (/msie/i.test Navigator.useragent) | | That.type = 2)? Fgm.randomrange (m): Fgm.randomrange for (i = 0; i < len; i++) {ochip = document.createelement ("div"); w ITH (ochip.style) {position = ' absolute '; top = param.y + ' px '; left = param.x + ' px '; width = ' 4px '; height = ' 4px '; over Flow = "hidden"; Borderradius = "4px"; Background = Fgm.getrancolor (); }; Ochip.speedx = Fgm.randomrange (-20, 20); Ochip.speedy = Fgm.randomrange (-20, 20); Ofrag.appendchild (ochip); Achip[i] = ochip}; Document.body.appendChild (Ofrag); Timer = setinterval (function () {for (i = 0; i < achip.length; i++) {var obj = achip[i]; and (obj.style) {top = Obj.of Fsettop + obj.speedy + "px"; left = Obj.offsetleft + obj.sPeedx + "px"; }; obj.speedy++; (Obj.offsettop < 0 | | Obj.offsetleft < 0 | | obj.offsettop > Document.documentElement.clientHeight | | obj.offsetle FT > Document.documentElement.clientWidth) && (Document.body.removeChild (obj), Achip.splice (i, 1)};! Achip[0] && clearinterval (timer); }, 30)}) ()}, 30}}; Fgm.on (window, "Load", function () {var otips = document.getElementById ("Tips"); var abtn = Otips.getelementsbytagname ("A "); var ofireworks = new FireWorks (); Fgm.on (Otips, "click", Function (event) {var oevent = event | | window.event; var otarget = Oevent.target | | oevent.srcelem Ent var i = 0; if (oTarget.tagName.toUpperCase () = = "A") {for (i = 0; i < abtn.length; i++) abtn[i].classname = ""; Switch (otarget.id) {case "manual": Ofireworks.type = 1, break, case "Auto": Ofireworks.type = 2; break, Case "stop": OFir Eworks.type = 0; Break } ofireworks.initialize (); Otarget.classname = "active"; Oevent.stoppropagation? Oevent.stoppropagation (): Oevent.canCelbubble = True}}); }); Fgm.on (document, "ContextMenu", function (event) {var oevent = event | | window.event; oevent.preventdefault? oevent.preve Ntdefault (): Oevent.returnvalue = false}); </script> </head> <body> <div id= "Tips" ><a id= "manual" javascript:; " > Manual Fireworks </a><a id= "Auto" href= "javascript:;" > Automatic Fireworks </a><a id= "Stop" href= "javascript:;" > Stop Fireworks </a></div> <p> due to limited browser rendering capabilities, when the browser for IE or choose to automatically release fireworks, randomly generated fireworks fragment range automatically adjusted to 20-30</p> <div id= "Copyright" > suggest using Firefox, Chrome browser preview effect. By-ferris, qq:21314130</div> </body> </html> |