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((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 '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 'bevel': return i+1}}
o=(o||"").toLowerCase()
var keep=/keep/.test(o)
var cc=((o.match(/cc:(#[0-9a-f]+)/)||[])[1])
var sc=((o.match(/sc:(#[0-9a-f]+)/)||[])[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 edges={T:0,B:1}
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}
var strip=document.createElement('div')
strip.style.overflow='hidden'
strip.style.height='1px'
strip.style.backgroundColor=sc || 'transparent'
strip.style.borderStyle='solid'
return this.each(function(index){
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}
if(jQuery.browser.msie)this.style.zoom=1
if(!keep)this.style.border='none'
strip.style.borderColor=cc || gpc(this.parentNode)
var cssHeight=jQuery.curCSS(this,'height')
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')
var ds=d.style
bot ? this.appendChild(d): this.insertBefore(d,this.firstChild)
if(bot&&cssHeight !='auto'){
if(jQuery.css(this,'position')=='static')
this.style.position='relative'
ds.position='absolute'
ds.bottom=ds.left=ds.padding=ds.margin='0'
if(jQuery.browser.msie)
ds.setExpression('width','this.parentNode.offsetWidth')
else
ds.width='100%'}
else{
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(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'
bot ? d.appendChild(e): d.insertBefore(e,d.firstChild)}}
})}