/**
 * justcorners.js 1.82 (18-Mar-2010) (c) by Christian Effenberger 
 * All Rights Reserved. Source: corner.netzgesta.de
 * Distributed under Netzgestade Software License Agreement.
 * This license permits free of charge use on non-commercial 
 * and private web sites only under special conditions. 
 * Read more at... http://www.netzgesta.de/cvi/LICENSE.html 
 * Commercial licenses available via... cvi[at]netzgesta[dot]de  
**/

var tmp = navigator.appName == 'Microsoft Internet Explorer' && navigator.userAgent.indexOf('Opera') < 1 ? 1 : 0;
if(tmp) var isIE = document.namespaces && !window.opera ? 1 : 0;

if(isIE) {
    if(document.namespaces['v']==null) {
        var e=["shape","shapetype","group","background","path","formulas","handles","fill","stroke","shadow","textbox","textpath","imagedata","line","polyline","curve","roundrect","oval","rect","arc","image"],s=document.createStyleSheet(); 
        for(var i=0; i<e.length; i++) {s.addRule("v\\:"+e[i],"behavior: url(#default#VML);");} document.namespaces.add("v","urn:schemas-microsoft-com:vml");
    } 
}

function roundedCorners(ctx,width,height,radius,lt,rt,lb,rb){
    ctx.beginPath(); ctx.moveTo(0,radius);
    if(lb==1) {ctx.lineTo(0,height-radius); ctx.quadraticCurveTo(0,height,radius,height); }else {ctx.lineTo(0,height); }
    if(rb==1) {ctx.lineTo(width-radius,height); ctx.quadraticCurveTo(width,height,width,height-radius); }else {ctx.lineTo(width,height); }
    if(rt==1) {ctx.lineTo(width,radius); ctx.quadraticCurveTo(width,0,width-radius,0); }else {ctx.lineTo(width,0); }        
    if(lt==1) {ctx.lineTo(radius,0); ctx.quadraticCurveTo(0,0,0,radius); }else {ctx.lineTo(0,0); }      
    ctx.closePath();
}

function addRoundedIECorners() {
    var image, object, vml, classNames, data, classes = ''; 
    var iradius = 0, iborder = 0, icolor = '', newClasses = ''; 
    var maxdim = 0, mindim = 0, i, j, child, tmp = '';
    var radius = null, display = "", flt = "", color = '';
    var tl = 1, tr = 1, bl = 1, br = 1; 
    var children = document.getElementsByTagName('img'); 
    var theimages = new Array(); 
    for(i=0;i<children.length;i++) {
        child = children[i];
        classNames = child.className.split(' ');
        for(j=0;j<classNames.length; j++) {
            if(classNames[j] == 'corners') {theimages.push(child); break; }
        }
    }   
    for(i=0;i<theimages.length;i++) {   
        image = theimages[i]; iradius = 16; color = '0000ff';
        tl = 1; tr = 1; bl = 1; br = 1; iborder = 0;
        object = image.parentNode; 
        classes = image.className.split(' ');
        for(j=0;j<classes.length;j++) {
            if(classes[j].indexOf("iradius") == 0) {
                iradius = classes[j].substring(7);
            }else if(classes[j].indexOf("iborder") == 0) {
                iborder = classes[j].substring(7);
            }else if(classes[j].indexOf("icolor") == 0) {
                icolor = classes[j].substring(6);
            }else if(classes[j].indexOf("iradiae") == 0) {
                tmp = classes[j].substring(7);
                tl = (tmp.substr(0,1)!="1"?0:1);
                tr = (tmp.substr(1,1)!="1"?0:1);
                bl = (tmp.substr(2,1)!="1"?0:1);
                br = (tmp.substr(3,1)!="1"?0:1);
            }
        } newClasses = '';
        for(j=0;j<classes.length;j++) {
            if(classes[j] != "corners") {
                if(newClasses) { newClasses += ' '; }
                newClasses += classes[j];
            }
        }
        maxdim = Math.min(image.width,image.height)/2;
        mindim = (iradius==0?16:iradius);
        radius = Math.min(maxdim,mindim);
        iborder = Math.min(iborder,2);
        color = (icolor.match(/^[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)?icolor:color);
        display = (image.currentStyle.display.toLowerCase()=='block')?'block':'inline-block';        
        vml = document.createElement(['<var style="zoom:1;overflow:hidden;display:' + display + ';width:' + image.width + 'px;height:' + image.height + 'px;padding:0;">'].join(''));
        flt =  image.currentStyle.styleFloat.toLowerCase();
        display = (flt=='left'||flt=='right')?'inline':display;
        var path = "m 0," + radius; 
        if(bl==1) {path += " l 0," + (image.height-radius) + " qy " + radius + "," + image.height;}else {path += " l 0," + image.height;}
        if(br==1) {path += " l " + (image.width-radius) + "," + image.height + " qx " + image.width + "," + (image.height-radius);}else {path += " l " + image.width + "," + image.height;}
        if(tr==1) {path += " l " + image.width + "," + radius + " qy " + (image.width-radius) + ",0";}else {path += " l " + image.width + ",0";}    
        if(tl==1) {path += " l " + radius + ",0 qx 0," + radius;}else {path += " l 0,0";}   
        path += " x e"; data = '<v:shape strokeweight="'+iborder+'px" stroked="'+(iborder>0?"t":"f")+'" strokecolor="#'+color+'" filled="t" fillcolor="#ffffff" coordorigin="0,0" coordsize="' + image.width + ',' + image.height + '" path="' + path + '" style="zoom:1;margin:-1px 0 0 -1px;padding: 0;display:' + display + ';width:' + image.width + 'px;height:' + image.height + 'px;"><v:fill src="' + image.src + '" type="frame" /></v:shape>';
        vml.innerHTML = [data ].join('');
        vml.className = newClasses;
        vml.style.cssText = image.style.cssText;
        vml.style.visibility = 'visible';
        vml.src = image.src; vml.alt = image.alt;
        if(image.id!='') vml.id = image.id;
        if(image.title!='') vml.title = image.title;
        if(image.getAttribute('onclick')!='') vml.setAttribute('onclick',image.getAttribute('onclick'));
        image.insertAdjacentElement('BeforeBegin',vml); 
        if(image.getAttribute("usemap")) {
            object.style.position = 'relative';
            object.style.height = image.height+'px';
            object.style.width = image.width+'px';
            image.left = 0; image.top = 0;
            image.style.position = 'absolute';
            image.style.height = image.height+'px';
            image.style.width = image.width+'px';
            image.style.left = 0 + 'px';
            image.style.top = 0 + 'px';
            image.style.filter = "Alpha(opacity=0)";
        }else {
            image.style.display = 'none'; 
        }
    }
}

function addRoundedCorners() {
    var image, object, canvas, context, classNames, classes = '';
    var iradius = 0, iborder = 0, icolor = '', newClasses = ''; 
    var maxdim = 0, mindim = 0, i, j, child, tmp = '';
    var tl = 1, tr = 1, bl = 1, br = 1, color = '';
    var children = document.getElementsByTagName('img'); 
    var theimages = new Array(); 
    for(i=0;i<children.length;i++) {
        child = children[i];
        classNames = child.className.split(' ');
        for(j=0;j<classNames.length; j++) {
            if (classNames[j] == 'corners') {theimages.push(child); break; }
        }
    }   
    for(i=0;i<theimages.length;i++) {   
        image = theimages[i]; iradius = 16; color = '0000ff';
        tl = 1; tr = 1; bl = 1; br = 1; iborder = 0;
        object = image.parentNode; 
        canvas = document.createElement('canvas');
        if(canvas.getContext) {
            classes = image.className.split(' ');  
            for(j=0;j<classes.length;j++) {
                if(classes[j].indexOf("iradius") == 0) {
                    iradius = classes[j].substring(7);              
                }else if(classes[j].indexOf("iborder") == 0) {
                    iborder = classes[j].substring(7);
                }else if(classes[j].indexOf("icolor") == 0) {
                    icolor = classes[j].substring(6);
                }else if(classes[j].indexOf("iradiae") == 0) {
                    tmp = classes[j].substring(7);
                    tl = (tmp.substr(0,1)!="1"?0:1);
                    tr = (tmp.substr(1,1)!="1"?0:1);
                    bl = (tmp.substr(2,1)!="1"?0:1);
                    br = (tmp.substr(3,1)!="1"?0:1);
                }
            } newClasses = '';
            for(j=0;j<classes.length;j++) {
                if(classes[j] != "corners") {
                    if(newClasses) { newClasses += ' '; }
                    newClasses += classes[j];
                }
            }
            canvas.className = newClasses;
            canvas.style.cssText = image.style.cssText;
            canvas.style.height = image.height+'px';
            canvas.style.width = image.width+'px';
            canvas.height = image.height;
            canvas.width = image.width;
            canvas.src = image.src; canvas.alt = image.alt;
            if(image.id!='') canvas.id = image.id;
            if(image.title!='') canvas.title = image.title;
            if(image.getAttribute('onclick')!='') canvas.setAttribute('onclick',image.getAttribute('onclick'));
            maxdim = Math.min(canvas.width,canvas.height)/2;
            mindim = (iradius==0?16:iradius);
            iradius = Math.min(maxdim,mindim);
            iborder = Math.min(iborder*2,iradius);
            color = (icolor.match(/^[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)?icolor:color);
            context = canvas.getContext("2d");
            if(image.getAttribute("usemap")) {
                object.style.position = 'relative';
                object.style.height = image.height+'px';
                object.style.width = image.width+'px';
                canvas.left = 0; canvas.top = 0;
                canvas.style.position = 'absolute';
                canvas.style.left = 0 + 'px';
                canvas.style.top = 0 + 'px';
                image.left = 0; image.top = 0;
                image.style.position = 'absolute';
                image.style.height = image.height+'px';
                image.style.width = image.width+'px';
                image.style.left = 0 + 'px';
                image.style.top = 0 + 'px';
                image.style.opacity = 0;
                object.insertBefore(canvas,image);
            }else {
                object.replaceChild(canvas,image);
            }
            context.clearRect(0,0,canvas.width,canvas.height);
            globalCompositeOperation = "source-in";
            roundedCorners(context,canvas.width,canvas.height,iradius,tl,tr,bl,br);
            context.clip();
            context.fillStyle = 'rgba(0,0,0,0)';
            context.fillRect(0,0,canvas.width,canvas.height);
            context.drawImage(image,0,0,canvas.width,canvas.height);
            if(iborder>0) {
                roundedCorners(context,canvas.width,canvas.height,iradius,tl,tr,bl,br);
                context.strokeStyle = '#'+color;
                context.lineWidth = iborder;
                context.stroke(); 
            }
            canvas.style.visibility = 'visible';
        }
    }
}

if(window.attachEvent&&!window.opera) window.attachEvent("onload",addRoundedIECorners);
else window.addEventListener("load",addRoundedCorners,false);