// top nav rollover
function rollover_nav(i, img_id, dir) {
	iL = i - 1;
	iR = i;
	if(i != 0)
		document.getElementById("bs"+iL).src = "../images/butsep_" + dir + ".gif";
	document.getElementById(img_id).src = "../images/b_" + img_id + "_" + dir + ".gif";
	document.getElementById("bs"+iR).src = "../images/butsep_" + dir + ".gif";
}

function rollover_nav2(i, dir) {
	if(dir == "on") {
		document.getElementById("div"+i+"_outer").style.background = "url('../images/nav2_T.gif') top no-repeat";
		document.getElementById("div"+i+"_inner").style.background = "url('../images/nav2_B.gif') bottom no-repeat";
		document.getElementById("href"+i).style.color = "#ffffff";
	}
	else {
		document.getElementById("div"+i+"_outer").style.background = "";
		document.getElementById("div"+i+"_inner").style.background = "";
		document.getElementById("href"+i).style.color = "#8d0101";
	}
}

function popUp(id)
{
  window.open('photo_popup.php?id='+id, '_blank', 'width=500,height=400,top=50,left=25,scrollbars=0,resizable=1,status=0,location=0,toolbar=0,menubar=0');
}

function calPopUp(timestamp)
{
  window.open('calendar_view_day.php?timestamp='+timestamp, 'cal_date', 'width=350,height=300,top=100,left=100,scrollbars=1,resizable=1,status=0,location=0,toolbar=0,menubar=0');
}

// preload (cache) navbar images
img1 = new Image();
img2 = new Image();   
img3 = new Image();
img4 = new Image();   
img5 = new Image();
img6 = new Image();
img7 = new Image();
img8 = new Image();
img9 = new Image();
img10 = new Image();
img1.src = "../images/b_home_on.gif";
img2.src = "../images/b_about_on.gif";
img3.src = "../images/b_research_on.gif";
img4.src = "../images/b_teaching_training_on.gif";
img5.src = "../images/b_people_on.gif";
img6.src = "../images/b_news_events_on.gif";
img7.src = "../images/b_funding_on.gif";
img8.src = "../images/b_resources_on.gif";
img9.src = "../images/b_contact_on.gif";
img10.src = "../images/butsep_on.gif";