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function constExpression(x) {
return x;
}
function simplifyCSSExpression() {
try {
var ss,sl, rs, rl;
ss = document.styleSheets;
sl = ss.length
for (var i = 0; i < sl; i++) {
simplifyCSSBlock(ss[i]);
}
}
catch (exc) {
//alert("Got an error while processing css. The page should still work but might be a bit slower");
throw exc;
}
}
function simplifyCSSBlock(ss) {
var rs, rl;
for (var i = 0; i < ss.imports.length; i++)
simplifyCSSBlock(ss.imports[i]);
if (ss.cssText.indexOf("expression(constExpression(") == -1)
return;
rs = ss.rules;
rl = rs.length;
for (var j = 0; j < rl; j++)
simplifyCSSRule(rs[j]);
}
function simplifyCSSRule(r) {
var str = r.style.cssText;
var str2 = str;
var lastStr;
do {
lastStr = str2;
str2 = simplifyCSSRuleHelper(lastStr);
} while (str2 != lastStr)
if (str2 != str)
r.style.cssText = str2;
}
function simplifyCSSRuleHelper(str) {
var i, i2;
i = str.indexOf("expression(constExpression(");
if (i == -1) return str;
i2 = str.indexOf("))", i);
var hd = str.substring(0, i);
var tl = str.substring(i2 + 2);
var exp = str.substring(i + 27, i2);
var val = eval(exp)
return hd + val + tl;
}
if (/msie/i.test(navigator.userAgent) && window.attachEvent != null) {
window.attachEvent("onload", function () {
simplifyCSSExpression();
});
}
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