bbcjs.css = new Object();
bbcjs.css.prototype = new bbcjs.Module("css", 1, "$Revision: 1.9 $", "$Date: 2005/06/03 14:20:31 $");
bbcjs.css.targets =
{
win : 1,
mac : 2,
linux : 4,
ie  : 8,
nav : 16,
opera :32,
ie5up :64,
nav6up :128,
ie6up : 256,
safari :512,
gecko :1024
}
bbcjs.css.detect = {};
bbcjs.css.detect.init = function()
{
this.agt=navigator.userAgent.toLowerCase();
this.is_major=parseInt(navigator.appVersion);
this.is_minor=parseFloat(navigator.appVersion);
this.is_win=((this.agt.indexOf("win")!=-1) || (this.agt.indexOf("16bit")!=-1) );
this.is_mac=(this.agt.indexOf("mac")!=-1);
this.is_linux=(this.agt.indexOf("inux")!=-1);
this.is_nav=((this.agt.indexOf('mozilla')!=-1) && (this.agt.indexOf('spoofer')==-1) && (this.agt.indexOf('compatible') == -1) && (this.agt.indexOf('opera')==-1) && (this.agt.indexOf('webtv')==-1) && (this.agt.indexOf('hotjava')==-1));
this.is_nav2=(this.is_nav && (this.is_major == 2));
this.is_nav3=(this.is_nav && (this.is_major == 3));
this.is_nav4=(this.is_nav && (this.is_major == 4));
this.is_nav4up=(this.is_nav && (this.is_major >= 4));
this.is_navOnly=(this.is_nav && ((this.agt.indexOf(";nav") != -1) || (this.agt.indexOf("; nav") != -1)) );
this.is_nav6=(this.is_nav && (this.is_major == 5));
this.is_nav6up=(this.is_nav && (this.is_major >= 5));
this.is_safari = ((this.agt.indexOf("safari") != -1));
this.is_gecko=(this.agt.indexOf('gecko') != -1);
this.is_ie=((this.agt.indexOf("msie") != -1) && (this.agt.indexOf("opera") == -1));
this.is_ie3=(this.is_ie && (this.is_major < 4));
this.is_ie4=(this.is_ie && (this.is_major == 4) && (this.agt.indexOf("msie 4")!=-1) );
this.is_ie4up=(this.is_ie && (this.is_major >= 4));
this.is_ie5=(this.is_ie && (this.is_major == 4) && (this.agt.indexOf("msie 5.0")!=-1) );
this.is_ie5_5=(this.is_ie && (this.is_major == 4) && (this.agt.indexOf("msie 5.5") !=-1));
this.is_ie5up=(this.is_ie && !this.is_ie3 && !this.is_ie4);
this.is_ie5_5up=(this.is_ie && !this.is_ie3 && !this.is_ie4 && !this.is_ie5);
this.is_ie6=(this.is_ie && (this.is_major == 4) && (this.agt.indexOf("msie 6.")!=-1) );
this.is_ie6up=(this.is_ie && !this.is_ie3 && !this.is_ie4 && !this.is_ie5 && !this.is_ie5_5);
this.is_opera=(this.agt.indexOf("opera") != -1);
this.is_opera2=(this.agt.indexOf("opera 2") != -1 || this.agt.indexOf("opera/2") != -1);
this.is_opera3=(this.agt.indexOf("opera 3") != -1 || this.agt.indexOf("opera/3") != -1);
this.is_opera4=(this.agt.indexOf("opera 4") != -1 || this.agt.indexOf("opera/4") != -1);
this.is_opera5=(this.agt.indexOf("opera 5") != -1 || this.agt.indexOf("opera/5") != -1);
this.is_opera5up=(this.is_opera && !this.is_opera2 && !this.is_opera3 && !this.is_opera4);
}
bbcjs.css.detect.init();
bbcjs.trace('<b><font color="green">jst_css.js</font> was included.</b>',2);
bbcjs.css.Swap = function (url, profiles)
{
bbcjs.trace('new bbcjs.css.Swap()');
this.url = url || '';
this.profiles = profiles || [];
}
bbcjs.css.swap = new bbcjs.css.Swap();
bbcjs.css.Swap.prototype.load = function ()
{
bbcjs.trace('<hr><b>bbcjs.css.swap.load()</b>...',2);
if (this.url)
{
this.write(this.url);
if (this.profiles)
{
var profile = this._parseProfiles(this.profiles);
if (profile.length > 0)
{
var s = '';
for (var i in profile) s += '.' + profile[i];
var profileFile = this.url.replace(/\.css/, s + '.css');
this.write(profileFile);
return true;
}
}
return true;
}
return false;
}
bbcjs.css.Swap.prototype._parseProfiles = function (profiles)
{
bbcjs.trace('<hr><b>bbcjs.css.swap._parseProfiles(' + profiles + ')</b>...',2);
var profile = [];
var isMatch = true;
for (var a=0; a<profiles.length; a++)
{
var operand = parseInt(profiles[a]).toString(2);
bbcjs.trace('<br><b>Profile ' + profiles[a] +' = ' + operand + '</b>',3);
for (var i=operand.length, j=1; i>0; i--, j++){
if (operand.charAt(i-1)==1)
{
bbcjs.trace('<i>Bit found at position ' + (j) + '</i>',4);
for (var t in bbcjs.css.targets)
{
bbcjs.trace('&nbsp;&nbsp;trying target: ' + t + ' = ' + bbcjs.css.targets[t].toString(2) + ' = ' + (bbcjs.css.targets[t].toString(2).length) + ')',4);
if (bbcjs.css.targets[t].toString(2).length==j)
{
bbcjs.trace('<u>Profile ' + profiles[a] + ' target = "' + t + '"</u>',3);
isMatch = isMatch && eval("bbcjs.css.detect.is_" + t);
profile[profile.length] = t;
break;
}
}
}
}
if (!isMatch)
{
bbcjs.trace('<font color="red">Profile ' + profiles[a] + ' (' + profile + ') did not match this environment</font>',3);
profile = [];
isMatch = true;
}
else
{
bbcjs.trace('<font color="green">Profile ' + profiles[a] + ' targets (' + profile + ') matched this environment</font>',3);
break;
}
}
return profile;
}
bbcjs.css.Swap.prototype.write = function (href)
{
bbcjs.trace('<hr><b>bbcjs.css.swap.write("' + href + '")</b>...',2);
var le = '<link rel="stylesheet" type="text/css" href="' + href + '">';
document.write(le);
}