function calculateValue(start, end, pos){
if (typeof end === "function"){
end = end.call(node);
}
if ((typeof start === "number") && (typeof end === "number")){
return start + (end - start) * att.tween(pos);
}
if ((start.indexOf(" ") !== -1) && start.replace(/[^ ]/g, "").length === end.replace(/[^ ]/g, "").length){
start = start.split(" ");
end = end.split(" ");
var ret = [];
for (var i = 0; i < start.length; i++){
ret.push(calculateValue(start[i], end[i], pos));
}
return ret.join(" ");
}
if (start.charAt(0) === "#" && end.charAt(0) === "#"){
return color.mix(start, end, pos, att.rgb? "rgb": "hsl");
}
var units = ["px", "pt", "%", "em", "deg"];
for (var i = 0; i < units.length; i++){
var re = (new RegExp(units[i] + "$"));
if (re.test(start) && ((typeof end === "number") || re.test(end))){
return calculateValue(parseFloat(start), parseFloat(end), pos) + units[i];
}
}
return end;
}
var value = directions.map(function(value){
var ret = style[pre + value + post];
if (post === "Color" && color.rgbStringRE.test(ret)){
ret = color.rgbStringToHex(ret);
}
return ret;
});
get: function getStyle(node, name, pseudo){
if (Array.isArray(name)){
var ret = {};
for (var i = 0; i < name.length; i++){
ret[name[i]] = css.get(node, name[i], pseudo);
}
return ret;
}
if (!pseudo){
pseudo = "";
}
var win = DOM.getWindow(node);
var style;
var realCalc = false;
if (win.getComputedStyle){
style = win.getComputedStyle(node, pseudo);
// no correct style properties in opera/safari/chrome if the node is not in den DOM-tree
// Firefox will be captured here as well although there it would work
if (!win.document.getElementsByTagName("html")[0].contains(node)){
style = node.style;
}
else {
realCalc = true;
}
}
else if (node.currentStyle){
// same in IE
if (win.document.body && win.document.body.contains(node)){
style = node.currentStyle;
realCalc = true;
}
else {
style = node.style;
}
}
else {
return null;
}
if (!name){
return style;
}
name = name.replace(/-([a-z])/g, function(match, hit){ return hit.toUpperCase();});
var value;
if (name in style){
value = style[name];
if (color.rgbStringRE.test(value)){
return color.rgbStringToHex(value);
}
if (typeof value !== "undefined" && value !== null && value.toString() !== ""){
return value;
}
}
if (name in css.get.combined){
var temp = css.get.combined[name];
if (name){
temp = temp.replace(/\+/g, name);
}
return temp.replace(/\{([^\{\}]*)\}/g, function(m, name){
return css.get(node, name, pseudo);
});
}
if (css.get.hasOwnProperty(name)){
value = css.get[name](node, style, pseudo);
if (value !== false){
return value;
}
}
for (var i = css.get.regExp.length - 1; i >= 0; i--){
var match = css.get.regExp[i].regExp.exec(name);
if (match){
value = css.get.regExp[i].get(node, style, pseudo, match);
if (value !== false || css.get.regExp[i].canBeFalse){
return value;
}
}
}
for (var i = browserPre.length - 1; i >= 0; i--){
var newName = browserPre + name.firstToUpperCase();
if (newName in style){
return node.style[newName];
}
}
//return false;
if ((name in style) && !realCalc){
return style[name];
}
return null;
},