switch (property) {
case “float”:
property = w3cMode ? “cssFloat” : “styleFloat”;
break;
case “opacity”:
if (!w3cMode) {
var val = 100;
try {
val = el.filters[‘DXImageTransform.Microsoft.Alpha’].opacity;
} catch (e) {
try {
val = el.filters(‘alpha’).opacity;
} catch (e) {
}
}
return val / 100;
} else {
return parseFloat((computed || el.style)[property]);
}
break;
case “backgroundPositionX”:
if (w3cMode) {
property = “backgroundPosition”;
return ((computed || el.style)[property]).split(” “)[0];
}
break;
case “backgroundPositionY”:
if (w3cMode) {
property = “backgroundPosition”;
return ((computed || el.style)[property]).split(” “)[1];
}
break;
}
if (w3cMode) {
return (computed || el.style)[property];
} else {
return (el.currentStyle[property] || el.style[property]);
}
},setStyle: function(el, properties, value) {
if (!(el = ZENG.dom.get(el)) || el.nodeType != 1) {
return false;
}
var tmp, bRtn = true, w3cMode = (tmp = document.defaultView) && tmp.getComputedStyle, rexclude = /z-?index|font-?weight|opacity|zoom|line-?height/i;
if (typeof (properties) == ‘string’) {
tmp = properties;
properties = {};
properties[tmp] = value;
}
for (var prop in properties) {
value = properties[prop];
if (prop == ‘float’) {
prop = w3cMode ? “cssFloat” : “styleFloat”;
} else if (prop == ‘opacity’) {
if (!w3cMode) {
prop = ‘filter’;
value = value >= 1 ? ” : (‘alpha(opacity=’ + Math.round(value * 100) + ‘)’);
}
} else if (prop == ‘backgroundPositionX’ || prop == ‘backgroundPositionY’) {
tmp = prop.slice(-1) == ‘X’ ? ‘Y’ : ‘X’;
if (w3cMode) {
var v = ZENG.dom.getStyle(el, “backgroundPosition” + tmp);
prop = ‘backgroundPosition’;
typeof (value) == ‘number’ && (value = value + ‘px’);
value = tmp == ‘Y’ ? (value + ” ” + (v || “top”)) : ((v || ‘left’) + ” ” + value);
}
}
if (typeof el.style[prop] != “undefined”) {
el.style[prop] = value + (typeof value === “number” && !rexclude.test(prop) ? ‘px’ : ”);
bRtn = bRtn && true;
} else {
bRtn = bRtn && false;
}
}
return bRtn;
},getScrollTop: function(doc) {
var _doc = doc || document;
return Math.max(_doc.documentElement.scrollTop, _doc.body.scrollTop);
},getClientHeight: function(doc) {
var _doc = doc || document;
return _doc.compatMode == “CSS1Compat” ? _doc.documentElement.clientHeight : _doc.body.clientHeight;
