function setActiveStyleSheet(title)
{
var i, a, main;
for(i=0; (a = document.getElementsByTagName("link")[i]); i++)
{
if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title"))
{
a.disabled = true;

if(a.getAttribute("title") == title)
a.disabled = false;
}
}
}



function getActiveStyleSheet()
{
var i, a;
for(i=0; (a = document.getElementsByTagName("link")[i]); i++)
{if(a.getAttribute("rel").indexOf("style") != -1
&& a.getAttribute("title")
&& !a.disabled)
return a.getAttribute("title");
}
return null;

}



function getPreferredStyleSheet()
{
var i, a;

for(i=0; (a = document.getElementsByTagName("link")[i]); i++)
{
if(a.getAttribute("rel").indexOf("style") != -1

&& a.getAttribute("rel").indexOf("alt") == -1

&& a.getAttribute("title"))
return a.getAttribute("title");

}
return null;
}



function createCookie(name,value,days)
{

if (days)
{
var date = new Date();
date.setTime(date.getTime()+(days*24*60*60*1000));
var expires = "; expires="+date.toGMTString();

}
else expires = "";
document.cookie = name+"="+value+expires+"; path=/";

}

function readCookie(name)
{
var nameEQ = name + "=";

var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++)
{
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);

}
return null;

}


function saveStyle()
{
var title = getActiveStyleSheet();
createCookie("style", title, 365);

}

function useStyle()
{

var cookie = readCookie("style");

var title = cookie ? cookie : getPreferredStyleSheet();

setActiveStyleSheet(title);
styleSelect = document.getElementById("styleSelect");
for (i=0; i<styleSelect.options.length; i++)
{
if (styleSelect.options[i].value == title)
{
styleSelect.options[i].selected = true;
}
}

}