// jq-corner.js - jQuery method for creating corner effects by Dave Methvin (dave.methvin@gmail.com)
// Modified by M. Alsup (malsup@gmail.com) to support more styles - Version 1.01, 10/24/2006
jQuery.fn.corner=function(o){function hex2(s){var s=parseInt(s).toString(16);return(s.length<2)?"0"+s:s;}function gpc(node){for(;node&&node.nodeName.toLowerCase()!="html";node=node.parentNode){var v=jQuery.css(node,"backgroundColor");if(v.indexOf("rgb")>=0){rgb=v.match(/\d+/g);return"#"+hex2(rgb[0])+hex2(rgb[1])+hex2(rgb[2]);}if(v&&v!="transparent")return v;}return"#ffffff";};function getW(i){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 Math.round(width*(1-Math.cos(Math.acos(i/width))));case"bite":return Math.round(width*(Math.cos(Math.asin(i/width))));case"slide":return Math.round(width*(Math.atan2(i,width/i)));case"jut":return Math.round(width*(Math.atan2(width,i)));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(i,width)));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;default:return i+1;}};o=(o||"").toLowerCase();var edges={T:0,B:1};var width=parseInt((o.match(/(\d+)px/)||[])[1])||10;var re=/round|bevel|notch|bite|cool|sharp|slide|jut|curl|tear|fray|wicked|sculpt|long|dog3|dog2|dog/;var fx=((o.match(re)||["round"])[0]);var opts={TL:/top|tl/.test(o),TR:/top|tr/.test(o),BL:/bottom|bl/.test(o),BR:/bottom|br/.test(o)};if(!opts.TL&&!opts.TR&&!opts.BL&&!opts.BR) opts={TL:1,TR:1,BL:1,BR:1};opts.swap=/bite|jut|sculpt/.test(fx);var strip=document.createElement("div");strip.style.overflow="hidden";strip.style.height="1px";strip.style.backgroundColor="transparent";strip.style.borderStyle="solid";return this.each(function(){var pad={T:parseInt(jQuery.css(this,"paddingTop"))||0,R:parseInt(jQuery.css(this,"paddingRight"))||0,B:parseInt(jQuery.css(this,"paddingBottom"))||0,L:parseInt(jQuery.css(this,"paddingLeft"))||0};strip.style.borderColor=gpc(this.parentNode);for(var j in edges){var bot=edges[j];strip.style.borderStyle="none "+(opts[j+'R']?"solid":"none")+" none "+(opts[j+'L']?"solid":"none");var d=document.createElement("div");d.style.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";d.style.backgroundColor="transparent";var append=(bot&&!opts.swap)||(!bot&&opts.swap);for(var i=0;i<width;i++){var w=Math.max(0,getW(i));var e=strip.cloneNode(false);e.style.borderWidth="0 "+(opts[j+'R']?w:0)+"px 0 "+(opts[j+'L']?w:0)+"px";;append?d.appendChild(e):d.insertBefore(e,d.firstChild);}bot?this.appendChild(d):this.insertBefore(d,this.firstChild);}});};