// shared.js script, version 2.1, 08-13-03

// global vars ======================================================
var loc = location.pathname.split('/');
loc.length = loc.length - 1; // removes filename 

var d = location.pathname.replace(/\/[^\/]*/g,'../'); // return one depth too deep, see next line for fix
d = d.substring(0,(d.length-3)); // turns this: ../../ into this ../
// /global vars ======================================================

// img preloads =====================================================
/*
hh = new Image(); hh.src = "/pix/hh.gif"; hh_roll = new Image(); hh_roll.src = "/pix/hh_roll.gif";
*/	
// /img preloads =====================================================

// popup window functions ==========================================
function popflex(URL,winName,W,H,scroll) {
	if (scroll == "no")
		{scroll = "scrollbars=no";}
	else if (scroll == "yes")
		{scroll = "scrollbars";}
	var popwin = window.open(URL, winName,"top=0,left=30,width="+W+",height="+H+",resizable=no,"+scroll+"");
	popwin.focus();
	}	
// /popup window functions ==========================================

function showhide_v3() {
	divid = arguments[0];
	classes = arguments[1];
	onstate = arguments[2];
	force = ''; //stops toggling between on and off and forces either on or off whenever clicked 
	if (typeof arguments[3] != 'undefined') {force = arguments[3];}

	var state = 'none';
	if (document.getElementById(divid).className == classes+' none' || 
	document.getElementById(divid).className == 'none') {
		var state = onstate;
		}
	if (force != '') {state = force;}
	document.getElementById(divid).className = classes+' '+state;
	return divid;
	}

function rotator(prefix,classtype,n,total,time) {
	/*
	call from html like:
	
	<p class="block" id="blurb_1">This is some text</p>
	<p class="none" id="blurb_2">and here is another line</p>
	<p class="none" id="blurb_3">and another</p>
	<p class="none" id="blurb_4">and finish.</p>
	<script type="text/javascript">rotator('blurb','block',1,4,50000);</script>
	*/
	for (var i = 1; i <= total; i++) {
		var divid = prefix+'_'+i;
		var display = 'none';
		if (i == n) {display = classtype;}
		document.getElementById(divid).className = display;
		}
	n++;
	if (n > total) {n = 1;}
	setTimeout('rotator("'+prefix+'","'+classtype+'",'+n+','+total+','+time+')',time);
	}
function rotator(prefix,classtype,n,total) {
	/*
	call from html like:
	
	<p class="block" id="blurb_1">This is some text</p>
	<p class="none" id="blurb_2">and here is another line</p>
	<p class="none" id="blurb_3">and another</p>
	<p class="none" id="blurb_4">and finish.</p>
	<script type="text/javascript">rotator('blurb','block',1,4);</script>
	*/
	for (var i = 1; i <= total; i++) {
		var divid = prefix+'_'+i;
		var display = 'none';
		if (i == n) {display = classtype;}
		document.getElementById(divid).className = display;
		}
	n++;
	if (n > total) {n = 1;}
	setTimeout('rotator("'+prefix+'","'+classtype+'",'+n+','+total+')',1000);
	}

function setFades() {
	// divs_to_fade array set on calling page
	var c = 0;
	for(var n = 0;n < divs_to_fade.length; n++) {
		if (n == 0) {
			dissolve(divs_to_fade[n],1,'down',40);
			setTimeout("dissolve('"+divs_to_fade[n]+"',100,'up',40)",(c+2000));
			}
		else {
			setTimeout("dissolve('"+divs_to_fade[n]+"',1,'down',40)",c);
			setTimeout("dissolve('"+divs_to_fade[n]+"',100,'up',40)",(c+2000));
			}
		c = c + 3500;
		}
	}
var n = 0;
function crossfade(speed) {
	dissolve(divs_to_fade[n],100,'up',speed);
	n++;
	if (n == divs_to_fade.length) {n = 0;}
	dissolve(divs_to_fade[n],1,'down',speed);
	}
function dissolve(obj_id,o_v,updown,speed) {//alert(obj_id+','+o_v+','+updown+','+speed);return false;
	var obj = document.getElementById(obj_id);
	if (obj == null) {return;}
	if (obj.filters) {obj.style.filter = 'alpha(opacity='+o_v+')';}
	obj.style.KHTMLOpacity = o_v/100;
	obj.style.MozOpacity = o_v/100;
	obj.style.opacity = o_v/100;
	if (updown == 'down') {
		if (o_v <= 100) {
			o_v += 2;
			window.setTimeout('dissolve("'+obj_id+'",'+(o_v)+',"'+updown+'","'+speed+'")',speed);
			}
		}
	if (updown == 'up') {
		if (o_v >= 0) {
			o_v -= 2;
			window.setTimeout('dissolve("'+obj_id+'",'+(o_v)+',"'+updown+'","'+speed+'")',speed);
			}
		}
	}

function load_functions() {
	/*
	NOTE: this function MUST be called from body onload, ex: <body onload="load_functions();">
	this avoids render timing issues in Safari
	*/

	// functions to be run on every page:
	detect_height();
	
	// functions run on a per/page basis. loadfunctions is an array declared in /folder/pagescript.js, each array object represents a function declared either in /shared.js or /folder/pagescript.js
	if (typeof loadfunctions !== 'undefined') {
		for (var n=0; n < loadfunctions.length; n++) {
			eval(loadfunctions[n]+'();');
			}
		}
	}

function detect_height() {
	/*
	NOTE: this function MUST be called from body onload, ex: <body onload="detect_height();">
	this avoids render timing issues in Safari
	*/
	
	var minheight = 500;
	
	function numberorder(a,b) {return a-b;}
	
	// page boxes =======================================================
	var pagecontainer = document.getElementById('pagecontainer');
	
	var box0 = document.getElementById('pagebox0');
	var box1 = document.getElementById('pagebox1');
	var box2 = document.getElementById('pagebox2');
	var box3 = document.getElementById('pagebox3');
	var boxfull = document.getElementById('pageboxfull');
	
	var boxes = new Array();

	boxes[0] = 0;
	if (box0 != null) {
		box0_H = box0.offsetHeight;//alert(box0_H);
		boxes[0] = box0_H;
		}
	boxes[1] = 0;
	if (box1 != null) {
		box1_H = box1.offsetHeight;//alert(box1_H);
		boxes[1] = box1_H;
		}
	boxes[2] = 0;
	if (box2 != null) {
		box2_H = box2.offsetHeight;//alert(box2_H);
		boxes[2] = box2_H;
		}
	boxes[3] = 0;
	if (box3 != null) {
		box3_H = box3.offsetHeight;//alert(box3_H);
		boxes[3] = box3_H;
		}
	boxes[4] = 0;
	if (boxfull != null) {
		boxfull_H = boxfull.offsetHeight;//alert(boxfull_H);
		boxes[4] = boxfull_H;
		}
	
	// find out who's longest =====
	boxes.sort(numberorder);//alert(boxes);
	var longest = boxes[(boxes.length-1)];//alert(longest);
	if (longest < minheight) {longest = minheight;}
	// /find out who's longest =====
	
	// reset all containers to the longest value =====
	try {// for IE8 which returns box0.style.setExpression as true but throws Not Implemented error
		if (document.all) {// for IE
		 	if (box0 != null) {box0.style.setExpression("height",'"'+longest+'px"');}
 			if (box1 != null) {box1.style.setExpression("height",'"'+longest+'px"');}
			if (box2 != null) {box2.style.setExpression("height",'"'+longest+'px"');}
			if (box3 != null) {box3.style.setExpression("height",'"'+longest+'px"');}
			if (boxfull != null) {boxfull.style.setExpression("height",'"'+longest+'px"');}
 			if (pagecontainer != null) {pagecontainer.style.setExpression("height",'"'+longest+'px"');}
	  	document.recalc(true);
			}
		}
	catch (err) {
		//alert(err);
		}
	// MUST come AFTER the above for IE7
	if (box0 != null) {box0.style.minHeight = longest+'px';}
	if (box1 != null) {box1.style.minHeight = longest+'px';}
	if (box2 != null) {box2.style.minHeight = longest+'px';}
	if (box3 != null) {box3.style.minHeight = longest+'px';}
	if (boxfull != null) {boxfull.style.minHeight = longest+'px';}
	if (pagecontainer != null) {pagecontainer.style.minHeight = longest+'px';}
	// reset all containers to the longest value =====
	// /page boxes =======================================================

	// shell boxes =======================================================
	var shellcontainer = document.getElementById('shellcontainer');
	
	var shellbox0 = document.getElementById('shellbox0');
	var shellbox1 = document.getElementById('shellbox1');
	var shellbox2 = document.getElementById('shellbox2');
	
	var shellboxes = new Array();

	shellboxes[0] = 0;
	if (box0 != null) {
		shellbox0_H = shellbox0.offsetHeight;//alert(shellbox0_H);
		shellboxes[0] = shellbox0_H;
		}
	shellboxes[1] = 0;
	if (shellbox1 != null) {
		shellbox1_H = shellbox1.offsetHeight;//alert(shellbox1_H);
		shellboxes[1] = shellbox1_H;
		}
	shellboxes[2] = 0;
	if (shellbox2 != null) {
		shellbox2_H = shellbox2.offsetHeight;//alert(shellbox2_H);
		shellboxes[2] = shellbox2_H;
		}
	
	// find out who's longest =====
	shellboxes.sort(numberorder);//alert(boxes);
	var longest = shellboxes[(shellboxes.length-1)];//alert(longest);
	if (longest < minheight) {longest = minheight;}
	// /find out who's longest =====
	
	// reset all shellboxes to the longest value =====
	try {// for IE8 which returns box0.style.setExpression as true but throws Not Implemented error
		if (document.all) {// for IE
	 		if (shellbox0 != null) {shellbox0.style.setExpression("height",'"'+longest+'px"');}
 			if (shellbox1 != null) {shellbox1.style.setExpression("height",'"'+longest+'px"');}
 			if (shellbox2 != null) {shellbox2.style.setExpression("height",'"'+longest+'px"');}
 			if (shellcontainer != null) {shellcontainer.style.setExpression("height",'"'+longest+'px"');}
	 	 document.recalc(true);
			}
		}
	catch (err) {
		//alert(err);
		}
	// MUST come AFTER the above for IE7
	if (shellbox0 != null) {shellbox0.style.minHeight = longest+'px';}
	if (shellbox1 != null) {shellbox1.style.minHeight = longest+'px';}
	if (shellbox2 != null) {shellbox2.style.minHeight = longest+'px';}
	if (shellcontainer != null) {shellcontainer.style.minHeight = longest+'px';}
	// reset all shellboxes to the longest value =====
	// /shell boxes =======================================================

	return true;
	}