//<!--

function MM_preloadImages() { //v3.0
	var d = document;
	if(d.images) {
		if(!d.MM_p)
			d.MM_p=new Array();
		var i,j=d.MM_p.length,a=MM_preloadImages.arguments;
		
		for(i=0; i<a.length; i++)
			if (a[i].indexOf("#")!=0) {
				d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];
			}
	}
	return true;
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function clearDefault(el) {
  if (el.defaultValue==el.value) el.value = ""
}


// from common.js, added by mjz
function checkpoll(f, maxselected) {
	// check that one is selected for radio type 
	if( f.questiontype.value == 1 ) {
		if( f.choices.length ) {
			for(i = 0; i < f.choices.length; i++) {
				if( f.choices[i].checked ) {
					return true;
				}
			}
		} else {
			if( f.choices.checked ) {
				return true;
			}
		}
	} else {
	// check for checkbox type
		var numselected = 0;
		for(i = 0; i < f.elements.length; i++) {
			if( ( f.elements[i].type == 'checkbox' ) && f.elements[i].checked ) {
				numselected++;
			}
		}
		if( numselected > 0 ) {
			if( numselected <= maxselected ) {
				return true;
			} else {
				if( maxselected ) {
					alert('Select up to ' + maxselected + ' choices');
					return false;
				}
				return true;
			}
		}
	}
	alert('Select at least one choice');
	return false;
}

//
// showbuttons and opennote are for the calculators
//
function showbuttons() {   

    var agt       = navigator.userAgent.toLowerCase();
    var IEMAC     = ((agt.indexOf("msie") != -1) && agt.indexOf("mac")!=-1);
    var N6        = (agt.indexOf("netscape6") != -1 || (agt.indexOf("netscape/6") !=-1 ));

    if ( IEMAC || N6 ) {
      return "<P>";
    }

    return "<P><FORM><INPUT TYPE='button' value='Calculate' Name='btnCallCalc' onClick='document.calculator.calculate()'><INPUT TYPE='button' value='View Report' Name='btnOpenNote' onClick='openNote()'></FORM>";
}

function openNote()
 { 
 
 var agt=navigator.userAgent.toLowerCase(); 
 var is_aol   = (agt.indexOf("aol") != -1);

 leftpos=0;
 if (screen) {
   leftpos=screen.width/2 - 300;
 } 

 if (is_aol) {
   var s = " ";
   s=document.calculator.sJavaScriptReport('HTML');
    document.write(s);
 }
 else {
   var OpenWindow=window.open("","newwin","toolbar=yes,menubar=yes,location=no,directories=no,status=no,scrollbars=yes,resizable=yes,copyhistory=no,width=600,height=380,left="+leftpos+",top=20");
   var s = " ";
   s=document.calculator.sJavaScriptReport('HTML');
   OpenWindow.document.write(s);
   OpenWindow.document.close(); 
   OpenWindow.focus();
 }
 }


// sets the print style sheet
// (modified version of the ala script)
function enablePrintStylesheet() {
	var i, links;
	links = document.getElementsByTagName("link");
	for(i = 0; i < links.length; i++) {
		if(links[i].getAttribute("rel").indexOf("style") != -1) {
			if(links[i].getAttribute("media").indexOf("screen") != -1) {
				links[i].setAttribute("href", "/styles/print.css");
			}
		}
	}
}

// moves back to screen stylesheet
// (modified version of the ala script)
function enableScreenStylesheet() {
	var i, links;
	links = document.getElementsByTagName("link");
	for(i = 0; i < links.length; i++) {
		if(links[i].getAttribute("rel").indexOf("style") != -1) {
			if(links[i].getAttribute("media").indexOf("screen") != -1) {
				links[i].setAttribute("href", "/styles/main.css");
			}
		}
	}
}

// open a popup with set width and height
function openWin(url, width, height) {
	window.open(url, 'newwin'); // , 'width=' + width + ',height=' + height);
}


// checks for valid email address.
// returns true for valid, false for not valid
function checkEmail(email) {
        var pattern = /^[a-z\'0-9]+([._-][a-z\'0-9]+)*@([-_a-z0-9]?([._-]?[a-z0-9]+))+\.[a-z]{2,}$/i;
        if(email.match(pattern)) {
		return true;
	}
	return false;
}


// checks for a valid email address and submits a form if valid
function checkMailingList(f) {
	var emailcheck = checkEmail(f.email.value);
        if(!emailcheck) {
                alert("Please enter valid email addresses.\n");
                return false;
        }
	f.submit();
        return true;
}


function match_heights() {
	le = document.getElementById("s_bottom_left");
	ri = document.getElementById("s_bottom_right");
	
	if(le && ri && le.childNodes && ri.childNodes) {
		match_table_heights(le.getElementsByTagName('table'), ri.getElementsByTagName('table'));
	}
	
	le = document.getElementById("s_bottom_left2");
	ri = document.getElementById("s_bottom_right2");
	
	if(le && ri && le.childNodes && ri.childNodes) {
		match_table_heights(le.getElementsByTagName('table'), ri.getElementsByTagName('table'));
	}
}

function match_table_heights(left_table, right_table) {

	if(left_table.length == 0 || right_table.length == 0)
		return;
	
	c = left_table[0];
	d = right_table[0];
	
	a = c.clientHeight;
	b = d.clientHeight;
	
	c_children = c.getElementsByTagName('tr');
	d_children = d.getElementsByTagName('tr');
	
	if(a > b) {		
		for(i = 0; i < d_children.length; i++) {
			d_children[i].style.height = (c_children[i].clientHeight) + 'px';
		}
	} else {
		for(i = 0; i < c_children.length; i++) {
			c_children[i].style.height = (d_children[i].clientHeight) + 'px';
		}
	}
}

/*
// click tracking  code
function click_track(e) {
	var el;
	var url = "none";
	var urlprefix = "/cgi-bin/ntlinktrack.cgi?";
	var domain = document.location.hostname;
	var n;
	
	// Get the event object
	if(window.event) {
		e = window.event; // get IE event
		el = e.srcElement;
	} else {
		el = e.target;
	}
	n = el;

	if(n.parentNode != null) {
		while(n.parentNode != null && !(n.tagName == 'A' || n.tagName == 'a')) {
			n = n.parentNode;
		}
	}
	
	if(n.href != null)
		url = n.href;

	// Make sure we're not dealing with a local link
	if(url != "none" && url.indexOf(domain)  == -1) {
		// Stop the normal link from being followed
		if(e.stopPropogation) {
			e.stopPropogation();
		} else {
			e.cancelBubble = true;
		}		
		if(e.preventDefault)
			e.preventDefault();
		else
			e.returnValue = false;
	
		// Follow a new link. also have path global to append
		window.location.href = urlprefix + url;
	}
}

// Start the event listeners
if(document.addEventListener) {
	document.addEventListener("click",click_track,true);
} else if(document.attachEvent) {
	document.attachEvent("onclick", click_track);
} else {
	document.onclick = click_track;
}
*/

//-->