function shover(f,e){var h=this;var d=h.getbyclass(document,f);for(var c=0;c<d.length;c++){var b=d[c];var g=h.getbyclass(b,e)[0];b.size={width:h.getstyle(b,"width"),height:h.getstyle(b,"height")};b.style.position="relative";b.style.overflow="hidden";g.style.position="absolute";g.style.width=b.size.width+"px";g.style.height=b.size.height+"px";g.style.top=b.size.height+"px";g.style.left="0px";g.style.zindex="99";g.style.opacity="1";this.slidespeed=5;this.opacitychange=false;this.opacity=100;function a(j,k){h.myaddevent(j,"mouseover",function(l){h.hoverin(l,j,k)});h.myaddevent(d[c],"mouseout",function(l){h.hoverout(l,j,k)})}a(b,g)}}shover.prototype.set=function(a){for(i in a){this[i]=a[i]}};shover.prototype.trigger=function(d,a,c){try{if(d.contains(c.relatedtarget)){return false}else{if(!c.relatedtarget){throw new error()}}}catch(b){if(a=="in"){if(d.contains(c.fromelement)){return false}}else{if(a=="out"){if(d.contains(c.toelement)){return false}}}}return true};shover.prototype.hoverin=function(c,b,d){var f=c||event;if(this.trigger(b,"in",f)){var a=this.getdir(f,b);if(a==0||a==2){if(a==0){d.style.top=-b.size.height+"px"}else{d.style.top=b.size.height+"px"}d.style.left="0px";this.startmove(d,{"top":0,"left":0,"opacity":this.opacity})}else{if(a==1){d.style.left=b.size.width+"px"}else{d.style.left=-b.size.width+"px"}d.style.top="0px";this.startmove(d,{"left":0,"opacity":this.opacity})}}};shover.prototype.hoverout=function(d,c,f){var g=d||event;var b=100;if(this.trigger(c,"out",g)){var a=this.getdir(g,c);if(this.opacitychange){b=0}switch(a){case 0:this.startmove(f,{"top":-c.size.height,"left":0,"opacity":b});break;case 2:this.startmove(f,{"top":c.size.height,"left":0,"opacity":b});break;case 1:this.startmove(f,{"left":c.size.width,"top":0,"opacity":b});break;case 3:this.startmove(f,{"left":-c.size.width,"top":0,"opacity":b});break}}};shover.prototype.startmove=function(f,c,d){var h;var e;var a=(11-this.slidespeed)>0?(11-this.slidespeed):1;var b=30;var g=this;clearinterval(f.movetimer);f.movetimer=setinterval(function(){var k=true;for(var j in c){var m=g.getstyle(f,j);var l=c[j];if(j=="opacity"){h=parseint(parsefloat(m)*100,10)}else{h=parseint(m,10)}if(h!=l){k=false}if(k){clearinterval(f.movetimer);d&&d()}else{e=(l-h)/a;e=l>h?math.ceil(e):math.floor(e);if(j=="opacity"){f.style[j]=(h+e)/100;f.style.filter="alpha(opacity="+(h+e)+")"}else{f.style[j]=(h+e)+"px"}}}},b)};shover.prototype.myaddevent=function(c,a,b){if(c.attachevent){c.attachevent("on"+a,function(){b.call(this)})}else{c.addeventlistener(a,b,false)}};shover.prototype.getbyclass=function(e,d){var f=[];var a=e.getelementsbytagname("*");var c=new regexp("\\b"+d+"\\b",b);for(var b=0;b<a.length;b++){if(c.test(a[b].classname)){f.push(a[b])}}return f};shover.prototype.getstyle=function(c,a){var b;if(c.currentstyle){b=c.currentstyle[a]}else{b=getcomputedstyle(c,false)[a]}if(a!="opacity"){b=parseint(b,10)}if(isnan(b)){b=c["offset"+a.charat(0).touppercase()+a.substring(1)]}return b};shover.prototype.getscroll=function(){var a={top:document.body.scrolltop||document.documentelement.scrolltop,left:document.body.scrollleft||document.documentelement.scrollleft};return a};shover.prototype.getpos=function(a){var b={left:0,top:0};while(a){b.left+=a.offsetleft;b.top+=a.offsettop;a=a.offsetparent}return b};shover.prototype.getdir=function(j,f){var j=j||event;var b=this.getstyle(f,"width"),d=this.getstyle(f,"height"),a=(j.clientx-this.getpos(f).left+this.getscroll().left-(b/2))*(b>d?(d/b):1),k=(j.clienty-this.getpos(f).top+this.getscroll().top-(d/2))*(d>b?(b/d):1),g=math.round((((math.atan2(k,a)*(180/math.pi))+180)/90)+3)%4,c=j.type;return g};