/*
 * automatically focus elements with a class of "autofocus"
 */
$(document).ready(function(){
	$('.autofocus').focus().select();
});

/*
 * Google Analytics document/bulletin tracking 
 */
$(document).ready(function(){
	if (typeof pageTracker != "undefined") {
		// Documents
		$('.docs a').click(function(){
			pageTracker._trackPageview('/viewfile/' + $(this).attr('title'));
		})
		// Bulletins
		$('.bulletins a').click(function(){
			pageTracker._trackPageview('/bulletin/' + $(this).text());
		})
	}
})

/*
 * Cookie helper functions 
 */

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 var 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 eraseCookie(name) {
	createCookie(name,"",-1);
}

/*
 * BITWISE Operators Helper functions
 */

// int setFlag(int flag, int flagSet, boolean selected)
function setFlag(flag, flagSet, selected) {
    if (selected) {
    	return (flag | flagSet);
    } else {
    	return (flagSet - (flagSet & flag));
    }
}

//int toggleFlag(int flag, int flagSet)
function toggleFlag(flag, flagSet) {
	return (flag ^ flagSet);
}

//boolean isFlagSet(int flag, int flagSet)
function isFlagSet(flag, flagSet) {
	return (flag == (flagSet & flag));
}