}
.header-content .beta-ribbons.ribbon-1 {
background-position: -170px 0;
top: -3px;
right: -145px;
}
.header-content p.copy .beta-ribbons.ribbon-1 {
top: -135px;
left: 900px;
}
.header-content .beta-ribbons.ribbon-4 {
background-position: -255px 0;
left: -62px;
top: -30px;
z-index: 10;
text-indent: -2000px;
}
JavaScript代码：
下面是这个焦点图插件的代码。
/**
* @author Alexander Farkas
* v. 1.22
*/
(function ($)
{
if (!document.defaultView || !document.defaultView.getComputedStyle)
{ // IE6-IE8
var oldCurCSS = $.curCSS;
$.curCSS = function (elem, name, force)
{
if (name === 'background-position')
{
name = 'backgroundPosition';
}
if (name !== 'backgroundPosition' || !elem.currentStyle || elem.currentStyle[name])
{
return oldCurCSS.apply(this, arguments);
}
var style = elem.style;
if (!force && style && style[name])
{
return style[name];
}
return oldCurCSS(elem, 'backgroundPositionX', force) + ' ' + oldCurCSS(elem, 'backgroundPositionY', force);
};
}
var oldAnim = $.fn.animate;
$.fn.animate = function (prop)
{
if ('background-position' in prop)
{
prop.backgroundPosition = prop['background-position'];
delete prop['background-position'];
}
if ('backgroundPosition' in prop)
{
prop.backgroundPosition = '(' + prop.backgroundPosition;
}
return oldAnim.apply(this, arguments);
};
function toArray(strg)
{
strg = strg.replace(/left|top/g, '0px');
strg = strg.replace(/right|bottom/g, '100%');
strg = strg.replace(/([0-9.]+)(s|)|$)/g, "$1px$2");
var res = strg.match(/(-?[0-9.]+)(px|%|em|pt)s(-?[0-9.]+)(px|%|em|pt)/);
return [parseFloat(res[1], 10), res[2], parseFloat(res[3], 10), res[3]];
}
$.fx.step.backgroundPosition = function (fx)
{
if (!fx.bgPosReady)
{
var start = $.curCSS(fx.elem, 'backgroundPosition');
if (!start)
{//FF2 no inline-style fallback
start = '0px 0px';
}
start = toArray(start);
fx.start = [start[0], start[2]];
var end = toArray(fx.end);
fx.end = [end[0], end[2]];
fx.unit = [end[1], end[3]];
fx.bgPosReady = true;
}
//return;
var nowPosX = [];
nowPosX[0] = ((fx.end[0] - fx.start[0]) * fx.pos) + fx.start[0] + fx.unit[0];
nowPosX[1] = ((fx.end[1] - fx.start[1]) * fx.pos) + fx.start[1] + fx.unit[1];
fx.elem.style.backgroundPosition = nowPosX[0] + ' ' + nowPosX[1];
};
})(jQuery);
/*
tlrkSlider
example usage:
$("#slider").tlrkSlider({
autoStart: false,
elements: {
"img": {delay: 10},
"h2": {delay: 500},
".copy": {delay: 800},
".button": {delay: 1000}
}
});
to go to a specific frame:
$("#slider").tlrkSlider("go", position);
