// Read a page's GET URL variables and return them as an associative array.
function getUrlVars(){
    var vars = [], hash;
    var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
    for(var i = 0; i < hashes.length; i++)
    {
        hash = hashes[i].split('=');
        vars.push(hash[0]);
        vars[hash[0]] = hash[1];
    }
    return vars;
}
var hash = getUrlVars();
///alert(hash['font']);

// Set default font value when not specified in the URL
var font = 1;

// Check if the URL font value is null (ie. we just navigated to this page)
// and only grab it if it has a valid value.
if (hash['font'] != null)
{
	font=hash['font'];
}