/*!  * jQuery corner plugin: simple corner rounding  * Examples and documentation at: http://jquery.malsup.com/corner/  * version 2.12 (23-MAY-2011)  * Requires jQuery v1.3.2 or later  * Dual licensed under the MIT and GPL licenses:  * http://www.opensource.org/licenses/mit-license.php  * http://www.gnu.org/licenses/gpl.html  * Authors: Dave Methvin and Mike Alsup  */  /**  *  corner() takes a single string argument:  $('#myDiv').corner("effect corners width")  *  *  effect:  name of the effect to apply, such as round, bevel, notch, bite, etc (default is round).   *  corners: one or more of: top, bottom, tr, tl, br, or bl.  (default is all corners)  *  width:   width of the effect; in the case of rounded corners this is the radius.   *           specify this value using the px suffix such as 10px (yes, it must be pixels).  */ ;(function($) {   var style = document.createElement('div').style,     moz = style['MozBorderRadius'] !== undefined,     webkit = style['WebkitBorderRadius'] !== undefined,     radius = style['borderRadius'] !== undefined || style['BorderRadius'] !== undefined,     mode = document.documentMode || 0,     noBottomFold = $.browser.msie && (($.browser.version < 8 && !mode) || mode < 8),      expr = $.browser.msie && (function() {         var div = document.createElement('div');         try { div.style.setExpression('width','0+0'); div.style.removeExpression('width'); }         catch(e) { return false; }         return true;     })();  $.support = $.support || {}; $.support.borderRadius = moz || webkit || radius; // so you can do:  if (!$.support.borderRadius) $('#myDiv').corner();  function sz(el, p) {      return parseInt($.css(el,p))||0;  }; function hex2(s) {     s = parseInt(s).toString(16);     return ( s.length < 2 ) ? '0'+s : s; }; function gpc(node) {     while(node) {         var v = $.css(node,'backgroundColor'), rgb;         if (v && v != 'transparent' && v != 'rgba(0, 0, 0, 0)') {             if (v.indexOf('rgb') >= 0) {                  rgb = v.match(/\d+/g);                  return '#'+ hex2(rgb[0]) + hex2(rgb[1]) + hex2(rgb[2]);             }             return v;         }         if (node.nodeName.toLowerCase() == 'html')             break;         node = node.parentNode; // keep walking if transparent     }     return '#ffffff'; };  function getWidth(fx, i, width) {     switch(fx) {     case 'round':  return Math.round(width*(1-Math.cos(Math.asin(i/width))));     case 'cool':   return Math.round(width*(1+Math.cos(Math.asin(i/width))));     case 'sharp':  return width-i;     case 'bite':   return Math.round(width*(Math.cos(Math.asin((width-i-1)/width))));     case 'slide':  return Math.round(width*(Math.atan2(i,width/i)));     case 'jut':    return Math.round(width*(Math.atan2(width,(width-i-1))));     case 'curl':   return Math.round(width*(Math.atan(i)));     case 'tear':   return Math.round(width*(Math.cos(i)));     case 'wicked': return Math.round(width*(Math.tan(i)));     case 'long':   return Math.round(width*(Math.sqrt(i)));     case 'sculpt': return Math.round(width*(Math.log((width-i-1),width)));     case 'dogfold':     case 'dog':    return (i&1) ? (i+1) : width;     case 'dog2':   return (i&2) ? (i+1) : width;     case 'dog3':   return (i&3) ? (i+1) : width;     case 'fray':   return (i%2)*width;     case 'notch':  return width;      case 'bevelfold':     case 'bevel':  return i+1;     case 'steep':  return i/2 + 1;     case 'invsteep':return (width-i)/2+1;     } };  $.fn.corner = function(options) {     // in 1.3+ we can fix mistakes with the ready state     if (this.length == 0) {         if (!$.isReady && this.selector) {             var s = this.selector, c = this.context;             $(function() {                 $(s,c).corner(options);             });         }         return this;     }      return this.each(function(index){         var $this = $(this),             // meta values override options             o = [$this.attr($.fn.corner.defaults.metaAttr) || '', options || ''].join(' ').toLowerCase(),             keep = /keep/.test(o),                       // keep borders?             cc = ((o.match(/cc:(#[0-9a-f]+)/)||[])[1]),  // corner color             sc = ((o.match(/sc:(#[0-9a-f]+)/)||[])[1]),  // strip color             width = parseInt((o.match(/(\d+)px/)||[])[1]) || 10, // corner width             re = /round|bevelfold|bevel|notch|bite|cool|sharp|slide|jut|curl|tear|fray|wicked|sculpt|long|dog3|dog2|dogfold|dog|invsteep|steep/,             fx = ((o.match(re)||['round'])[0]),             fold = /dogfold|bevelfold/.test(o),             edges = { T:0, B:1 },             opts = {                 TL:  /top|tl|left/.test(o),       TR:  /top|tr|right/.test(o),                 BL:  /bottom|bl|left/.test(o),    BR:  /bottom|br|right/.test(o)             },             // vars used in func later             strip, pad, cssHeight, j, bot, d, ds, bw, i, w, e, c, common, $horz;                  if ( !opts.TL && !opts.TR && !opts.BL && !opts.BR )             opts = { TL:1, TR:1, BL:1, BR:1 };                      // support native rounding         if ($.fn.corner.defaults.useNative && fx == 'round' && (radius || moz || webkit) && !cc && !sc) {             if (opts.TL)                 $this.css(radius ? 'border-top-left-radius' : moz ? '-moz-border-radius-topleft' : '-webkit-border-top-left-radius', width + 'px');             if (opts.TR)                 $this.css(radius ? 'border-top-right-radius' : moz ? '-moz-border-radius-topright' : '-webkit-border-top-right-radius', width + 'px');             if (opts.BL)                 $this.css(radius ? 'border-bottom-left-radius' : moz ? '-moz-border-radius-bottomleft' : '-webkit-border-bottom-left-radius', width + 'px');             if (opts.BR)                 $this.css(radius ? 'border-bottom-right-radius' : moz ? '-moz-border-radius-bottomright' : '-webkit-border-bottom-right-radius', width + 'px');             return;         }                      strip = document.createElement('div');         $(strip).css({             overflow: 'hidden',             height: '1px',             minHeight: '1px',             fontSize: '1px',             backgroundColor: sc || 'transparent',             borderStyle: 'solid'         });              pad = {             T: parseInt($.css(this,'paddingTop'))||0,     R: parseInt($.css(this,'paddingRight'))||0,             B: parseInt($.css(this,'paddingBottom'))||0,  L: parseInt($.css(this,'paddingLeft'))||0         };          if (typeof this.style.zoom != undefined) this.style.zoom = 1; // force 'hasLayout' in IE         if (!keep) this.style.border = 'none';         strip.style.borderColor = cc || gpc(this.parentNode);         cssHeight = $(this).outerHeight();          for (j in edges) {             bot = edges[j];             // only add stips if needed             if ((bot && (opts.BL || opts.BR)) || (!bot && (opts.TL || opts.TR))) {                 strip.style.borderStyle = 'none '+(opts[j+'R']?'solid':'none')+' none '+(opts[j+'L']?'solid':'none');                 d = document.createElement('div');                 $(d).addClass('jquery-corner');                 ds = d.style;                  bot ? this.appendChild(d) : this.insertBefore(d, this.firstChild);                  if (bot && cssHeight != 'auto') {                     if ($.css(this,'position') == 'static')                         this.style.position = 'relative';                     ds.position = 'absolute';                     ds.bottom = ds.left = ds.padding = ds.margin = '0';                     if (expr)                         ds.setExpression('width', 'this.parentNode.offsetWidth');                     else                         ds.width = '100%';                 }                 else if (!bot && $.browser.msie) {                     if ($.css(this,'position') == 'static')                         this.style.position = 'relative';                     ds.position = 'absolute';                     ds.top = ds.left = ds.right = ds.padding = ds.margin = '0';                                          // fix ie6 problem when blocked element has a border width                     if (expr) {                         bw = sz(this,'borderLeftWidth') + sz(this,'borderRightWidth');                         ds.setExpression('width', 'this.parentNode.offsetWidth - '+bw+'+ "px"');                     }                     else                         ds.width = '100%';                 }                 else {                     ds.position = 'relative';                     ds.margin = !bot ? '-'+pad.T+'px -'+pad.R+'px '+(pad.T-width)+'px -'+pad.L+'px' :                                          (pad.B-width)+'px -'+pad.R+'px -'+pad.B+'px -'+pad.L+'px';                                 }                  for (i=0; i < width; i++) {                     w = Math.max(0,getWidth(fx,i, width));                     e = strip.cloneNode(false);                     e.style.borderWidth = '0 '+(opts[j+'R']?w:0)+'px 0 '+(opts[j+'L']?w:0)+'px';                     bot ? d.appendChild(e) : d.insertBefore(e, d.firstChild);                 }                                  if (fold && $.support.boxModel) {                     if (bot && noBottomFold) continue;                     for (c in opts) {                         if (!opts[c]) continue;                         if (bot && (c == 'TL' || c == 'TR')) continue;                         if (!bot && (c == 'BL' || c == 'BR')) continue;                                                  common = { position: 'absolute', border: 'none', margin: 0, padding: 0, overflow: 'hidden', backgroundColor: strip.style.borderColor };                         $horz = $('<div/>').css(common).css({ width: width + 'px', height: '1px' });                         switch(c) {                         case 'TL': $horz.css({ bottom: 0, left: 0 }); break;                         case 'TR': $horz.css({ bottom: 0, right: 0 }); break;                         case 'BL': $horz.css({ top: 0, left: 0 }); break;                         case 'BR': $horz.css({ top: 0, right: 0 }); break;                         }                         d.appendChild($horz[0]);                                                  var $vert = $('<div/>').css(common).css({ top: 0, bottom: 0, width: '1px', height: width + 'px' });                         switch(c) {                         case 'TL': $vert.css({ left: width }); break;                         case 'TR': $vert.css({ right: width }); break;                         case 'BL': $vert.css({ left: width }); break;                         case 'BR': $vert.css({ right: width }); break;                         }                         d.appendChild($vert[0]);                     }                 }             }         }     }); };  $.fn.uncorner = function() {      if (radius || moz || webkit)         this.css(radius ? 'border-radius' : moz ? '-moz-border-radius' : '-webkit-border-radius', 0);     $('div.jquery-corner', this).remove();     return this; };  // expose options $.fn.corner.defaults = {     useNative: true, // true if plugin should attempt to use native browser support for border radius rounding     metaAttr:  'data-corner' // name of meta attribute to use for options };      })(jQuery);