// http://www.quirksmode.org/js/cookies.html ################

function makeCookie(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 biteCookie(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 eatCookie(name) {
	//var name = "merghtnav";
	makeCookie(name,"",-1);
}
//#######################################################

//#######################################################
function rightNavClose() {
	var el = $('#rightNavContent');
	$(el).hide();
	//return false;
	
	makeCookie('merghtnav','me_rn_c',7); // set for 7 days; "0" zero expires when user closes browser
}
	
function rightNavOpen() {
	var el = $('#rightNavContent');
	$(el).show();
	//return false;
	
	makeCookie('merghtnav','me_rn_o',7); // set for 7 days; "0" zero expires when user closes browser
}
//#######################################################

function swapCookie() {
	var meCook = biteCookie('merghtnav');
	
	if (meCook == "me_rn_c") {
		makeCookie('merghtnav','me_rn_o',7);
		
	} else if (meCook == "me_rn_o") {
		makeCookie('merghtnav','me_rn_c',7);
		
	} else {
		eatCookie('merghtnav');
	}
}

// ROLL ##################################################
function newImage(arg) {
  if (document.images) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
  }
}

function changeImages() {
  if (document.images && (preloadFlag == true)) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
    }
  }
}

var preloadFlag = false;
function preloadImages() {
  if (document.images) {
    ff_n_over = newImage("/me_08/img/icons/ff.gif");
    ns_n_over = newImage("/me_08/img/icons/ns.gif");
    ie_n_over = newImage("/me_08/img/icons/ie.gif");
    flash_n_over = newImage("/me_08/img/icons/flash.gif");
    qt_n_over = newImage("/me_08/img/icons/qt.gif");
    jsa_n_over = newImage("/me_08/img/icons/jsa.gif");
    preloadFlag = true;
  }
}