particle_emitter=function(opts){var defaults={center:['50%','50%'],offset:[0,0],radius:0,image:'particle.gif',size:1,velocity:10,decay:500,rate:10};var _options=$.extend({},defaults,opts);var _timer,_margin,_distance,_interval,_is_chrome=false;(function(){if(navigator.userAgent.indexOf('Chrome')>=0)_is_chrome=true;_margin=_options.size/2;_distance=_options.velocity*(_options.decay/1000);_interval=1000/_options.rate;})();var _sparkle=function(){var rads=(Math.random()*360)*(Math.PI/180);var sx=parseInt((Math.cos(rads)*(_options.radius+_margin))+_options.offset[0]-_margin);var sy=parseInt((Math.sin(rads)*(_options.radius+_margin))+_options.offset[1]-_margin);var ex=parseInt((Math.cos(rads)*(_options.radius+_distance+_margin+0.5))+_options.offset[0]-0.5);var ey=parseInt((Math.sin(rads)*(_options.radius+_distance+_margin+0.5))+_options.offset[1]-0.5);var image;if(typeof(_options.image)=='object')image=_options.image[Math.floor(Math.random()*_options.image.length)];else image=_options.image;var s=$('<img>').attr('src',image).css({zIndex:10,position:'absolute',width:_options.size+'px',height:_options.size+'px',left:_options.center[0],top:_options.center[1],marginLeft:sx+'px',marginTop:sy+'px'}).appendTo('body').animate({width:'1px',height:'1px',marginLeft:ex+'px',marginTop:ey+'px',opacity:_is_chrome?1:0},_options.decay,'linear',function(){$(this).remove();});_timer=setTimeout(function(){_sparkle();},_interval);};return{start:function(){clearTimeout(_timer);_timer=setTimeout(function(){_sparkle();},0);return(this);},stop:function(){clearTimeout(_timer);return(this);},centerTo:function(x,y){_options.center[0]=x;_options.center[1]=y;},offsetTo:function(x,y){if((typeof(x)=='number')&&(typeof(y)=='number')){_options.center[0]=x;_options.center[1]=y;}}}};var emitter={top:Object,main:Object,images:[particle_img.star,particle_img.dot],center:['50%','50%'],offset:[0,0],velocity:30,decay:1000,init:function(){this.med=new particle_emitter({image:this.images,center:this.center,offset:this.offset,radius:30,size:24,velocity:this.velocity,decay:this.decay,rate:35});this.small=new particle_emitter({image:this.images,center:this.center,offset:this.offset,radius:20,size:18,velocity:this.velocity,decay:this.decay,rate:25});}};var new_offset={x:Number,y:Number,init:function(element){var center_x=$(element).width()/2;var center_y=$(element).height()/2;var offset=$(element).offset();this.x=offset.left+center_x;this.y=$(element).scrollTop()+offset.top+center_y;}};$(function(){emitter.init();$(".top_links a").hover(function(){burst=emitter.med;new_offset.init(this);var over=$("<div/>").addClass("over");burst.offsetTo(new_offset.x,new_offset.y);burst.start();image=$(this).find("img");img_width=$(image).width();img_height=$(image).height();$(image).stop().animate({width:img_width*1.1,height:img_height*1.1},200,function(){burst.stop();});},function(){burst.stop();$(image).stop().animate({width:img_width,height:img_height},0);});$(".top_links_show").hover(function(){burst=emitter.med;new_offset.init(this);var ani_start={bottom:0};burst.offsetTo(new_offset.x,new_offset.y);burst.start();$(this).animate(ani_start,400,function(){burst.stop();});},function(){burst.stop();});});