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/* $Id$ */
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/* Nifty Corners Cube - rounded corners with CSS and Javascript
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Copyright 2006 Alessandro Fulciniti (a.fulciniti@html.it)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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var niftyOk=(document.getElementById && document.createElement && Array.prototype.push);
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var niftyCss=true;
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String.prototype.find=function(what){
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return(this.indexOf(what)>=0 ? true : false);
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}
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var oldonload=window.onload;
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if(typeof(NiftyLoad)!='function') NiftyLoad=function(){};
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if(typeof(oldonload)=='function')
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window.onload=function(){oldonload();AddCss();NiftyLoad()};
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else window.onload=function(){AddCss();NiftyLoad()};
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function AddCss(){
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niftyCss=true;
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var l=CreateEl("link");
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l.setAttribute("type","text/css");
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l.setAttribute("rel","stylesheet");
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l.setAttribute("href","niftyCorners.css");
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l.setAttribute("media","screen");
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document.getElementsByTagName("head")[0].appendChild(l);
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}
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function Nifty(selector,options){
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if(niftyOk==false) return;
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if(niftyCss==false) AddCss();
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var i,v=selector.split(","),h=0;
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if(options==null) options="";
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if(options.find("fixed-height"))
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h=getElementsBySelector(v[0])[0].offsetHeight;
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for(i=0;i<v.length;i++)
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Rounded(v[i],options);
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if(options.find("height")) SameHeight(selector,h);
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}
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function Rounded(selector,options){
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var i,top="",bottom="",v=new Array();
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if(options!=""){
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options=options.replace("left","tl bl");
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options=options.replace("right","tr br");
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options=options.replace("top","tr tl");
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options=options.replace("bottom","br bl");
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options=options.replace("transparent","alias");
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if(options.find("tl")){
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top="both";
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if(!options.find("tr")) top="left";
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}
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else if(options.find("tr")) top="right";
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if(options.find("bl")){
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bottom="both";
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if(!options.find("br")) bottom="left";
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}
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else if(options.find("br")) bottom="right";
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}
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if(top=="" && bottom=="" && !options.find("none")){top="both";bottom="both";}
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v=getElementsBySelector(selector);
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for(i=0;i<v.length;i++){
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FixIE(v[i]);
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if(top!="") AddTop(v[i],top,options);
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if(bottom!="") AddBottom(v[i],bottom,options);
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}
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}
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function AddTop(el,side,options){
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var d=CreateEl("b"),lim=4,border="",p,i,btype="r",bk,color;
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d.style.marginLeft="-"+getPadding(el,"Left")+"px";
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d.style.marginRight="-"+getPadding(el,"Right")+"px";
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if(options.find("alias") || (color=getBk(el))=="transparent"){
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color="transparent";bk="transparent"; border=getParentBk(el);btype="t";
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}
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else{
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bk=getParentBk(el); border=Mix(color,bk);
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}
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d.style.background=bk;
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d.className="niftycorners";
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p=getPadding(el,"Top");
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if(options.find("small")){
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d.style.marginBottom=(p-2)+"px";
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btype+="s"; lim=2;
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}
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else if(options.find("big")){
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d.style.marginBottom=(p-10)+"px";
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btype+="b"; lim=8;
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}
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else d.style.marginBottom=(p-5)+"px";
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for(i=1;i<=lim;i++)
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d.appendChild(CreateStrip(i,side,color,border,btype));
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el.style.paddingTop="0";
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el.insertBefore(d,el.firstChild);
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}
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function AddBottom(el,side,options){
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var d=CreateEl("b"),lim=4,border="",p,i,btype="r",bk,color;
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d.style.marginLeft="-"+getPadding(el,"Left")+"px";
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d.style.marginRight="-"+getPadding(el,"Right")+"px";
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if(options.find("alias") || (color=getBk(el))=="transparent"){
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color="transparent";bk="transparent"; border=getParentBk(el);btype="t";
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}
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else{
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bk=getParentBk(el); border=Mix(color,bk);
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}
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d.style.background=bk;
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d.className="niftycorners";
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p=getPadding(el,"Bottom");
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if(options.find("small")){
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d.style.marginTop=(p-2)+"px";
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btype+="s"; lim=2;
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}
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else if(options.find("big")){
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d.style.marginTop=(p-10)+"px";
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btype+="b"; lim=8;
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}
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else d.style.marginTop=(p-5)+"px";
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for(i=lim;i>0;i--)
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d.appendChild(CreateStrip(i,side,color,border,btype));
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el.style.paddingBottom=0;
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el.appendChild(d);
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}
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function CreateStrip(index,side,color,border,btype){
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var x=CreateEl("b");
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x.className=btype+index;
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x.style.backgroundColor=color;
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x.style.borderColor=border;
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if(side=="left"){
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x.style.borderRightWidth="0";
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x.style.marginRight="0";
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}
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else if(side=="right"){
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x.style.borderLeftWidth="0";
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x.style.marginLeft="0";
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}
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return(x);
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}
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function CreateEl(x){
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return(document.createElement(x));
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}
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function FixIE(el){
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if(el.currentStyle!=null && el.currentStyle.hasLayout!=null && el.currentStyle.hasLayout==false)
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el.style.display="inline-block";
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}
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function SameHeight(selector,maxh){
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var i,v=selector.split(","),t,j,els=[],gap;
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for(i=0;i<v.length;i++){
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t=getElementsBySelector(v[i]);
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els=els.concat(t);
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}
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for(i=0;i<els.length;i++){
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if(els[i].offsetHeight>maxh) maxh=els[i].offsetHeight;
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els[i].style.height="auto";
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}
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for(i=0;i<els.length;i++){
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gap=maxh-els[i].offsetHeight;
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if(gap>0){
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t=CreateEl("b");t.className="niftyfill";t.style.height=gap+"px";
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nc=els[i].lastChild;
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if(nc.className=="niftycorners")
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els[i].insertBefore(t,nc);
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else els[i].appendChild(t);
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}
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}
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}
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function getElementsBySelector(selector){
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var i,j,selid="",selclass="",tag=selector,tag2="",v2,k,f,a,s=[],objlist=[],c;
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if(selector.find("#")){ //id selector like "tag#id"
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if(selector.find(" ")){ //descendant selector like "tag#id tag"
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s=selector.split(" ");
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var fs=s[0].split("#");
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if(fs.length==1) return(objlist);
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f=document.getElementById(fs[1]);
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if(f){
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v=f.getElementsByTagName(s[1]);
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for(i=0;i<v.length;i++) objlist.push(v[i]);
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}
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return(objlist);
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}
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else{
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s=selector.split("#");
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tag=s[0];
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selid=s[1];
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if(selid!=""){
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f=document.getElementById(selid);
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if(f) objlist.push(f);
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return(objlist);
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}
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}
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}
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if(selector.find(".")){ //class selector like "tag.class"
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s=selector.split(".");
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tag=s[0];
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selclass=s[1];
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if(selclass.find(" ")){ //descendant selector like tag1.classname tag2
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s=selclass.split(" ");
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selclass=s[0];
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tag2=s[1];
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}
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}
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var v=document.getElementsByTagName(tag); // tag selector like "tag"
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if(selclass==""){
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for(i=0;i<v.length;i++) objlist.push(v[i]);
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return(objlist);
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}
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for(i=0;i<v.length;i++){
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c=v[i].className.split(" ");
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for(j=0;j<c.length;j++){
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if(c[j]==selclass){
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if(tag2=="") objlist.push(v[i]);
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else{
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v2=v[i].getElementsByTagName(tag2);
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for(k=0;k<v2.length;k++) objlist.push(v2[k]);
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}
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}
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}
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}
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return(objlist);
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}
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function getParentBk(x){
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var el=x.parentNode,c;
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while(el.tagName.toUpperCase()!="HTML" && (c=getBk(el))=="transparent")
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el=el.parentNode;
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if(c=="transparent") c="#FFFFFF";
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return(c);
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}
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function getBk(x){
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var c=getStyleProp(x,"backgroundColor");
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if(c==null || c=="transparent" || c.find("rgba(0, 0, 0, 0)"))
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return("transparent");
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if(c.find("rgb")) c=rgb2hex(c);
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return(c);
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}
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function getPadding(x,side){
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var p=getStyleProp(x,"padding"+side);
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if(p==null || !p.find("px")) return(0);
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return(parseInt(p));
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}
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function getStyleProp(x,prop){
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if(x.currentStyle)
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return(x.currentStyle[prop]);
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if(document.defaultView.getComputedStyle)
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return(document.defaultView.getComputedStyle(x,'')[prop]);
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return(null);
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}
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function rgb2hex(value){
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var hex="",v,h,i;
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var regexp=/([0-9]+)[, ]+([0-9]+)[, ]+([0-9]+)/;
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var h=regexp.exec(value);
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for(i=1;i<4;i++){
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v=parseInt(h[i]).toString(16);
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if(v.length==1) hex+="0"+v;
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else hex+=v;
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}
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return("#"+hex);
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}
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function Mix(c1,c2){
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var i,step1,step2,x,y,r=new Array(3);
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if(c1.length==4)step1=1;
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else step1=2;
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if(c2.length==4) step2=1;
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else step2=2;
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for(i=0;i<3;i++){
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x=parseInt(c1.substr(1+step1*i,step1),16);
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if(step1==1) x=16*x+x;
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y=parseInt(c2.substr(1+step2*i,step2),16);
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if(step2==1) y=16*y+y;
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r[i]=Math.floor((x*50+y*50)/100);
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r[i]=r[i].toString(16);
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if(r[i].length==1) r[i]="0"+r[i];
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}
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return("#"+r[0]+r[1]+r[2]);
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}
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