// openwindow for slideshow
function OpenWindow(i)
{
   var win=window.open("","Photos","menubar=1,toolbar=0,scrollbars=1,location=0,width=790,height=600,resizable=1");
   win.focus();
   win.location=i;
}

// div visibility: used for summer reading teacher list
function switch_div(div_id) {
	if (document.getElementById(div_id).style.display == 'none') {
		document.getElementById(div_id).style.display = 'block';
	}
	else
	{
		document.getElementById(div_id).style.display = 'none';
	}
}

// div visibility: collapse/expand all; used for summer reading teacher list
function collapse_expand_all(vis,div_id_base,cnt) {
	var c=cnt-1;
	var i;
	for (i=0;i<=c;i++ ) {
		var idn = i+1;
		var div_id=div_id_base + idn;
		if (vis == 'e') {
			document.getElementById(div_id).style.display = 'block';
		}
		else
		{
			document.getElementById(div_id).style.display = 'none';
		}
	}
}

// left nav
if (typeof left_nav == 'undefined') left_nav = ""
if (typeof left_nav_bottom == 'undefined') left_nav_bottom = ""

// rotating pictures in homepage & left nav
if (typeof pic_type == 'undefined') pic_type="pic"

if (pic_type == "hp") {
u=43
l=1
}
if (pic_type == "pic") {
u=93
l=1
}
if (pic_type == "welcome") {
u=1
l=1
}
if (pic_type == "admis") {
u=1
l=1
}
if (pic_type == "store") {
u=1
l=1
}
if (pic_type == "facility") {
u=1
l=1
}
if (pic_type == "bevent120_sm") {
u=1
l=1
}


// rotating pictures
function getRandom() {
   random_num = Math.floor((Math.random()*(u-l+1))+l)
   document.write('<img src="/photos/'+pic_type+random_num+'.jpg" alt="">')
}