// Build 20090624163704@JAMES-NB Copyright(c) 2006-2008, Walkr.CN http://www.walkr.cn Object.extend(Element,{getStyle:function(element,style){element=$(element);if(!element||!element.style)return null;var value=element.style[style.camelize()];if(!value){if(document.defaultView&&document.defaultView.getComputedStyle){var css=document.defaultView.getComputedStyle(element,null);value=css?css.getPropertyValue(style):null;}else if(element.currentStyle){value=element.currentStyle[style.camelize()];}} if(window.opera&&['left','top','right','bottom'].include(style)) if(Element.getStyle(element,'position')=='static')value='auto';return value=='auto'?null:value;}});Object.extend(Array.prototype,{remove:function(idx){if(isNaN(idx)||idx<0||idx>this.length) return false;for(var i=0,n=0;i4){coords.pop();} var ret=coords;}else{var node=$(coords);var ret=[this.getAbsoluteX(node,includeScroll),this.getAbsoluteY(node,includeScroll),node.offsetWidth,node.offsetHeight];} ret.x=ret[0];ret.y=ret[1];ret.w=ret[2];ret.h=ret[3];return ret;},getAbsoluteX:function(node,includeScroll){return this.getTotalOffset(node,"left",includeScroll);},getAbsoluteY:function(node,includeScroll){return this.getTotalOffset(node,"top",includeScroll);},getTotalOffset:function(node,type,includeScroll){var typeStr=(type=="top")?"offsetTop":"offsetLeft";var typeScroll=(type=="top")?"scrollTop":"scrollLeft";var alt=(type=="top")?"y":"x";var ret=0;if(node["offsetParent"]){if(includeScroll&&node.parentNode!=document.body){ret-=this.sumAncestorProperties(node,typeScroll);} do{ret+=node[typeStr];node=node.offsetParent;}while(node!=document.getElementsByTagName("body")[0].parentNode&&node!=null);}else if(node[alt]){ret+=node[alt];} return ret;},sumAncestorProperties:function(node,prop){if(!node){return 0;} var retVal=0;while(node){var val=node[prop];if(val){retVal+=val-0;} node=node.parentNode;} return retVal;},getAbsolutePosition:function(node,includeScroll){var position=[this.getAbsoluteX(node,includeScroll),this.getAbsoluteY(node,includeScroll)];position.x=position[0];position.y=position[1];return position;},getViewportPosition:function(element){return this._toAbsolute(element,true);},getDocumentPosition:function(element){return this._toAbsolute(element,false);},_toAbsolute:function(element,accountForDocScroll){if(navigator.userAgent.toLowerCase().indexOf("msie")==-1) return this._toAbsoluteMozilla(element,accountForDocScroll);var x=0;var y=0;var parent=element;while(parent){var borderXOffset=0;var borderYOffset=0;if(parent!=element){var borderXOffset=parseInt(Element.getStyle(parent,"borderLeftWidth"));var borderYOffset=parseInt(Element.getStyle(parent,"borderTopWidth"));borderXOffset=isNaN(borderXOffset)?0:borderXOffset;borderYOffset=isNaN(borderYOffset)?0:borderYOffset;} x+=parent.offsetLeft+borderXOffset;y+=parent.offsetTop+borderYOffset;if(parent&&parent!=document.body&&parent!=document.documentElement){if(parent.scrollLeft) x-=parent.scrollLeft;if(parent.scrollTop) y-=parent.scrollTop;} parent=parent.offsetParent;} if(accountForDocScroll){x-=this.docScrollLeft();y-=this.docScrollTop();} return{x:x,y:y};},_toAbsoluteMozilla:function(element,accountForDocScroll){var x=0;var y=0;var parent=element;while(parent){x+=parent.offsetLeft;y+=parent.offsetTop;parent=parent.offsetParent;} parent=element;while(parent&&parent!=document.body&&parent!=document.documentElement){if(parent.scrollLeft) x-=parent.scrollLeft;if(parent.scrollTop) y-=parent.scrollTop;parent=parent.parentNode;} if(accountForDocScroll){x-=this.docScrollLeft();y-=this.docScrollTop();} return{x:x,y:y};},docScrollLeft:function(){if(window.pageXOffset) return window.pageXOffset;else if(document.documentElement&&document.documentElement.scrollLeft) return document.documentElement.scrollLeft;else if(document.body) return document.body.scrollLeft;else return 0;},docScrollTop:function(){if(window.pageYOffset) return window.pageYOffset;else if(document.documentElement&&document.documentElement.scrollTop) return document.documentElement.scrollTop;else if(document.body) return document.body.scrollTop;else return 0;},getScrollOffset:function(){var ret=[0,0];if(window.pageYOffset){ret=[window.pageXOffset,window.pageYOffset];}else if(document.documentElement&&document.documentElement.scrollTop){ret=[document.documentElement.scrollLeft,document.documentElement.scrollTop];}else if(document.body){ret=[document.body.scrollLeft,document.body.scrollTop];} ret.x=ret[0];ret.y=ret[1];return ret;}});if(!window.Color){var Color=Class.create();} Color.prototype={initialize:function(red,green,blue){this.rgb={r:red,g:green,b:blue};},setRed:function(r){this.rgb.r=r;},setGreen:function(g){this.rgb.g=g;},setBlue:function(b){this.rgb.b=b;},setHue:function(h){var hsb=this.asHSB();hsb.h=h;this.rgb=Color.HSBtoRGB(hsb.h,hsb.s,hsb.b);},setSaturation:function(s){var hsb=this.asHSB();hsb.s=s;this.rgb=Color.HSBtoRGB(hsb.h,hsb.s,hsb.b);},setBrightness:function(b){var hsb=this.asHSB();hsb.b=b;this.rgb=Color.HSBtoRGB(hsb.h,hsb.s,hsb.b);},darken:function(percent){var hsb=this.asHSB();this.rgb=Color.HSBtoRGB(hsb.h,hsb.s,Math.max(hsb.b-percent,0));},brighten:function(percent){var hsb=this.asHSB();this.rgb=Color.HSBtoRGB(hsb.h,hsb.s,Math.min(hsb.b+percent,1));},blend:function(other){this.rgb.r=Math.floor((this.rgb.r+other.rgb.r)/2);this.rgb.g=Math.floor((this.rgb.g+other.rgb.g)/2);this.rgb.b=Math.floor((this.rgb.b+other.rgb.b)/2);},isBright:function(){var hsb=this.asHSB();return this.asHSB().b>0.5;},isDark:function(){return!this.isBright();},asRGB:function(){return"rgb("+this.rgb.r+","+this.rgb.g+","+this.rgb.b+")";},asHex:function(){return"#"+this.rgb.r.toColorPart()+this.rgb.g.toColorPart()+this.rgb.b.toColorPart();},asHSB:function(){return Color.RGBtoHSB(this.rgb.r,this.rgb.g,this.rgb.b);},toString:function(){return this.asHex();}};Color.createFromHex=function(hexCode){if(hexCode.length==4){var shortHexCode=hexCode;var hexCode='#';for(var i=1;i<4;i++) hexCode+=(shortHexCode.charAt(i)+shortHexCode.charAt(i));} if(hexCode.indexOf('#')==0) hexCode=hexCode.substring(1);var red=hexCode.substring(0,2);var green=hexCode.substring(2,4);var blue=hexCode.substring(4,6);return new Color(parseInt(red,16),parseInt(green,16),parseInt(blue,16));} Color.createColorFromBackground=function(elem){var actualColor=Element.getStyle($(elem),"background-color");if(actualColor=="transparent"&&elem.parentNode) return Color.createColorFromBackground(elem.parentNode);if(actualColor==null) return new Color(255,255,255);if(actualColor.indexOf("rgb(")==0){var colors=actualColor.substring(4,actualColor.length-1);var colorArray=colors.split(",");return new Color(parseInt(colorArray[0]),parseInt(colorArray[1]),parseInt(colorArray[2]));} else if(actualColor.indexOf("#")==0){return Color.createFromHex(actualColor);} else return new Color(255,255,255);} Color.HSBtoRGB=function(hue,saturation,brightness){var red=0;var green=0;var blue=0;if(saturation==0){red=parseInt(brightness*255.0+0.5);green=red;blue=red;} else{var h=(hue-Math.floor(hue))*6.0;var f=h-Math.floor(h);var p=brightness*(1.0-saturation);var q=brightness*(1.0-saturation*f);var t=brightness*(1.0-(saturation*(1.0-f)));switch(parseInt(h)){case 0:red=(brightness*255.0+0.5);green=(t*255.0+0.5);blue=(p*255.0+0.5);break;case 1:red=(q*255.0+0.5);green=(brightness*255.0+0.5);blue=(p*255.0+0.5);break;case 2:red=(p*255.0+0.5);green=(brightness*255.0+0.5);blue=(t*255.0+0.5);break;case 3:red=(p*255.0+0.5);green=(q*255.0+0.5);blue=(brightness*255.0+0.5);break;case 4:red=(t*255.0+0.5);green=(p*255.0+0.5);blue=(brightness*255.0+0.5);break;case 5:red=(brightness*255.0+0.5);green=(p*255.0+0.5);blue=(q*255.0+0.5);break;}} return{r:parseInt(red),g:parseInt(green),b:parseInt(blue)};} Color.RGBtoHSB=function(r,g,b){var hue;var saturation;var brightness;var cmax=(r>g)?r:g;if(b>cmax) cmax=b;var cmin=(r