function stopError() {
            return true;
          }

          window.onerror = stopError;

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];}}
}

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) { //v3.0
  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); 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 fixLayers() {
	if (navigator.appName == "Netscape") {
		if (parseFloat(navigator.appVersion) >= 4.5) {
			document.location.reload();
		} // End Check AppVersion
	}// End Check AppName
} // End fixLayers

function MM_showHideLayers() { //v3.0A Modified by Mark Cameron of McGraw-Hill for NN6 Compatibility
  var i,p,v,obj,args=MM_showHideLayers.arguments;if(document.getElementById){
   for (i=0; i<(args.length-2); i+=3){ obj=tmt_findObj(args[i]);v=args[i+2];
   v=(v=='show')?'visible':(v='hide')?'hidden':v;
   if(obj)obj.style.visibility=v;}} else{
  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 tmt_findObj(n){
	var x,t; if((n.indexOf("?"))>0&&parent.frames.length){t=n.split("?");
	x=eval("parent.frames['"+t[1]+"'].document.getElementById('"+t[0]+"')");
	}else{x=document.getElementById(n)}return x;
}

function newWindow(imageName, imageWidth, imageHeight) {
	imageWidth = imageWidth + 20;
	imageHeight = imageHeight + 20;
	var paramString = 'height=' + imageHeight + ',width=' + imageWidth + ',toolbar=yes,location=no,status=no,menubar=yes,scrollbars=yes,resizable=yes'
	var newWindow = window.open(imageName,'newWindow', paramString);
}

function openItTool(url)

{

 varnewWin=window.open(url,"","resizable=yes,menubar=no,toolbar=no,width=520,height=400,scrollbars=yes");

}

function openFlash(url)

{

 varnewWin=window.open(url,"","resizable=no,menubar=no,toolbar=no,width=700,height=500,scrollbars=no");

}

function openPuzzle1(url)

{

 varnewWin=window.open(url,"","resizable=no,menubar=no,toolbar=no,width=580,height=380,scrollbars=no");

}
function openPuzzle2(url)

{

 varnewWin=window.open(url,"","resizable=no,menubar=no,toolbar=no,width=580,height=520,scrollbars=no");

}

function openPuzzle3(url)

{

 varnewWin=window.open(url,"","resizable=no,menubar=no,toolbar=no,width=590,height=540,scrollbars=no");

}

function openPuzzle4(url)

{

 varnewWin=window.open(url,"","resizable=no,menubar=no,toolbar=no,width=620,height=500,scrollbars=no");

}

function openPuzzle5(url)

{

 varnewWin=window.open(url,"","resizable=no,menubar=no,toolbar=no,width=600,height=500,scrollbars=no");

}

function openPuzzle6(url)

{

 varnewWin=window.open(url,"","resizable=no,menubar=no,toolbar=no,width=600,height=548,scrollbars=no");

}

function openPuzzle7(url)

{

 varnewWin=window.open(url,"","resizable=no,menubar=no,toolbar=no,width=580,height=548,scrollbars=no");

}

function popupdatatable1(){
        popupwindow=window.open("../../../cgi-bin/biolabs.cgi?function=DisplayBlankDataTable&num=0&user=45&order=&DB=$DatabaseName&tl=$titlename&fn=","UserData","width=620,height=460,top=5,left=5,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes");
}

function popupdatatable5(){
        popupwindow=window.open("../../../cgi-bin/biolabs.cgi?function=DisplayBlankDataTable&num=0&user=3&order=&DB=$DatabaseName&tl=$titlename&fn=","UserData","width=620,height=460,top=5,left=5,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes");
}

function popupdatatable9(){
        popupwindow=window.open("../../../cgi-bin/biolabs.cgi?function=DisplayBlankDataTable&num=0&user=12&order=&DB=$DatabaseName&tl=$titlename&fn=","UserData","width=620,height=460,top=5,left=5,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes");
}

function popupdatatable10(){
        popupwindow=window.open("../../../cgi-bin/biolabs.cgi?function=DisplayBlankDataTable&num=0&user=19&order=&DB=$DatabaseName&tl=$titlename&fn=","UserData","width=620,height=460,top=5,left=5,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes");
}

function popupdatatable15(){
        popupwindow=window.open("../../../cgi-bin/biolabs.cgi?function=DisplayBlankDataTable&num=0&user=14&order=&DB=$DatabaseName&tl=$titlename&fn=","UserData","width=620,height=460,top=5,left=5,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes");
}

function popupdatatable22(){
        popupwindow=window.open("../../../cgi-bin/biolabs.cgi?function=DisplayBlankDataTable&num=0&user=44&order=&DB=$DatabaseName&tl=$titlename&fn=","UserData","width=620,height=460,top=5,left=5,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes");
}

function popupdatatable23(){
        popupwindow=window.open("../../../cgi-bin/biolabs.cgi?function=DisplayBlankDataTable&num=0&user=46&order=&DB=$DatabaseName&tl=$titlename&fn=","UserData","width=620,height=460,top=5,left=5,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes");
}


function popupdatatable25(){
        popupwindow=window.open("../../../cgi-bin/biolabs.cgi?function=DisplayBlankDataTable&num=0&user=16&order=&DB=$DatabaseName&tl=$titlename&fn=","UserData","width=620,height=460,top=5,left=5,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes");
}

function popupdatatable32(){
        popupwindow=window.open("../../../cgi-bin/biolabs.cgi?function=DisplayBlankDataTable&num=0&user=17&order=&DB=$DatabaseName&tl=$titlename&fn=","UserData","width=620,height=460,top=5,left=5,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes");
}

function popupdatatable32b(){
        popupwindow=window.open("../../../cgi-bin/biolabs.cgi?function=DisplayBlankDataTable&num=0&user=47&order=&DB=$DatabaseName&tl=$titlename&fn=","UserData","width=620,height=460,top=5,left=5,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes");
}

function popupdatatable39(){
        popupwindow=window.open("../../../cgi-bin/biolabs.cgi?function=DisplayBlankDataTable&num=0&user=43&order=&DB=$DatabaseName&tl=$titlename&fn=","UserData","width=620,height=460,top=5,left=5,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes");
}

function summary(){

	if (confirm("Is this information correct?\n\nCity:\t\t" + document.biolab.szCity.value + "\nState:\t\t" + document.biolab.szState.options[document.biolab.szState.selectedIndex].value + "\nSchool:\t\t" + document.biolab.szSchool.value)){
	document.biolab.submit(); }

}


                function check_form(){
                
                        var agt = navigator.userAgent.toLowerCase();
                        if (parseInt(navigator.appVersion)<=3){
                                check_form_3();} 
                        else { 
                                check_form_4();}
                }


        function check_form_4(){
        
        var empty_alert; 
                /*if (document.biolab.szFirstName.value == ""){
                        var name_alert = "Name \n";
                        var blank_areas = name_alert;
                        var x = 1;
                        } */
				if (document.biolab.szCity.value == ""){
                        var city_alert = "City \n";
                        if (x != 1){
                                var blank_areas = city_alert;
                                var x = 1;
                        }else{
                                blank_areas = blank_areas + city_alert;
                                }                                               
                }                
                if (document.biolab.szState.options[document.biolab.szState.selectedIndex].value == ""){
                        var statename_alert = "State \n";                   
                        if (x != 1){
                                var blank_areas = statename_alert;
                                var x = 1;
                        }else{
                                blank_areas = blank_areas + statename_alert;
                                }
                
                }
				if (document.biolab.szSchool.value == ""){
						var school_alert = "School \n";
						if (x != 1){
							var blank_areas = school_alert;
							var x = 1;
						}else{
								blank_areas = blank_areas + school_alert;
								}
					}			
                
                if (x == 1){
                        alert("The following field(s) need to be filled in:\n\n" + blank_areas);                        
                }else{
                        summary();
                }
                        
                        
        }

                
                
                function isEmpty(s)
{   return ((s == null) || (s.length == 0))
}


function isWhitespace (s)

{   var i;
        var whitespace = " \t\n\r";

    if (isEmpty(s)) return true;

    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);

        if (whitespace.indexOf(c) == -1) return false;
    }

    return true;
}

                
                
function check_form_3(){
		
        var x = 0;
        var empty_alert; 
                if (isWhitespace(document.biolab.elements[4].value)){
                        var name_alert = "Name \n";
                        var blank_areas = name_alert;
                        var x = 1;
                        }
				if (isWhitespace(document.biolab.elements[6].value)){
                        var city_alert = "City \n";
                        if (x != 1){
                                var blank_areas = city_alert;
                                var x = 1;
                        }else{
                                blank_areas = blank_areas + city_alert;
                                }                                               
                }
                if (isWhitespace(document.biolab.szState.options[document.biolab.szState.selectedIndex].value)){
                        var statename_alert = "State \n";                   
                        if (x != 1){
                                var blank_areas = statename_alert;
                                var x = 1;
                        }else{
                                blank_areas = blank_areas + statename_alert;
                                }
                
                }                
                if
(isWhitespace(document.biolab.szSchool.elements[7].value)){
						var school_alert = "School \n";
						if (x != 1){				
				        var blank_areas = school_alert;
                                var x = 1;
                        }else{
                                blank_areas = blank_areas + school_alert;
                                }                                               
                }
                if (x == 1){
                        alert("The following field(s) need to be filled in:\n\n" + blank_areas);                        
                }else{
						summary();
                }
                        
                        
        }

		
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function  doMath() {
var one = eval(document.biolab.szTrial1Time.value)
var two = eval(document.biolab.szTrial2Time.value)
var three = eval(document.biolab.szTrial3Time.value)
var four = eval(document.biolab.szTrial4Time.value)
var five = eval(document.biolab.szTrial5Time.value)
var prod = one + two + three + four + five 
var aveg = (one + two + three + four + five) / 5

document.biolab.szTotalTime.value=custRound(prod,2);
document.biolab.szAvgTime.value=custRound(aveg,2);

}

function  doMathChapter23() {
var one = eval(document.biolab.szTrial1.value)
var two = eval(document.biolab.szTrial2.value)
var three = eval(document.biolab.szTrial3.value)
var four = eval(document.biolab.szTrial4.value)
var five = eval(document.biolab.szTrial5.value)
var prod = one + two + three + four + five 
var aveg = (one + two + three + four + five) / 5

document.biolab.szTotal.value=custRound(prod,2);
document.biolab.szAverage.value=custRound(aveg,2);

}

function  doMathChapter23b() {
var one = eval(document.biolab.szArea.value)
var two = eval(document.biolab.szLength.value)
var three = eval(document.biolab.szWidth.value)
var prod = two * three 
document.biolab.szCalculateArea.value=custRound(prod,2);

var four = eval(document.biolab.szCalculateArea.value)
var aveg =  four / one
document.biolab.szCalculateNumber.value=custRound(aveg,2);

var five = eval(document.biolab.szCalculateNumber.value)
var six = eval(document.biolab.szAverage.value)
var aveg2 =  five * six
document.biolab.szCalculateTotal.value=custRound(aveg2,2);


}

function custRound(x,places) {
return (Math.round(x*Math.pow(10,places)))/Math.pow(10,places)
}