JavaScript - Some Help Required With Passing Array Elements

//Insert variable into the Array
function insertElem(){
	//Insert and sort first array, but not second array
	if(nameInput.value != ""){
		studName2.push(nameInput2.value);
	}
	else{
		alert("Value to be inserted cannot be Null");
	}
	
	//Refresh display area
	clearAndShow2();
}

//Refresh second array
function clearAndShow2(){
	nameInput2.value = "";
	messageBox2.innerHTML = "";
	messageBox2.innerHTML += "Groups: " + "<br />" + studName2.join("<br />") + "<br />";
}

var arrA=new Array("fox.com","nbc.com","abc.com", "google.com");
var arrB=new Array("car","bike","boat", "plane");
var arrC=new Array("1","2","3", "4", "5", "6", "7", "8", "9");

function display(myArray){
   myArray[1] = "changed";
}

display(myArray);

document.writeln(myArray[1]);

 

var myString = '123456';

var trialVar = new Array[myString.length]
	
document.write('TEST ' + '<BR><BR>' + trialVar);

<?php
$server_name="localhost";
$db_user="sql_user";
$db_pass="password";
$db="mydb";

$sql = "SELECT city FROM posts";
$result = mysql_query($query) or die ('Query Error: ' . mysql_error()); 
while ($results = mysql_fetch_array($result))
{
	$gender = $results[gender];
}

?>

  <div id="map_canvas" style="width: 600px; height: 400px"></div> 

  <script type="text/javascript"> 

    var locations = document.getElementById("$gender");

    var mapOpt = { 
       mapTypeId: google.maps.MapTypeId.TERRAIN,
       center: new google.maps.LatLng(38.00, -100.00),
       zoom: 3
    };

    var map = new google.maps.Map(document.getElementById("map_canvas"), mapOpt);

    var geocoder = new google.maps.Geocoder();
    var index = 0;

    var geocoderFunction = function () { 
       geocoder.geocode({ 'address': locations[index] }, function (results, status) {
          if (status == google.maps.GeocoderStatus.OK) {
             new google.maps.Marker({
                map: map, 
                position: results[0].geometry.location
             });             
          }

          // Call the geocoder with a 100ms delay
          index++;
          if (locations.length > index) {
             setTimeout(geocoderFunction, 100);
          }
       });
    }

    // Launch the geocoding process
    geocoderFunction();
  </script>

$(document).ready(function() {
	
var color1=new Array(); 
color1[0]="images/cp-roof-blue.png";       
color1[1]="images/cp-panel-blue.png";
color1[2]="images/cp-trim-blue.png";


function perform(name, x) {
	alert(name[x]);
	//alert([name][x]);
	//alert(name+'['+x+']');
	//alert(color1[0]); // correct
    return name[x];
}
	
function Roof(color) {
	$("#colorPicker .roof").css("background", "url("+color+")");
}
	
$('.btnRoof').click(function() {
	var pid = $(this).parent().parent().attr("id");			
	Roof(perform(pid, 0));
});


});

var salesPerson=new Array(100)
for (i=0; i <=100; i++)
{
	salesPerson[i]=new Array(2);	
}

var x = 0;

do
{
 
salesPerson[x][0] = getName();
salesPerson[x][1] = getSales();
x++;
}while(x != 100 && confirm("Enter more employee information?"));

printRow(salesPerson[][]);

function getName()
{
	var nameEntered = prompt("What is your first name?");
	return nameEntered;
}

function getSales()
{	
	var error;
	var salesEntered;
	
	do
	{
	 	salesEntered = prompt("What were your sales?");
	 	error = false;	 	 	
		if (isNaN(salesEntered) || salesEntered == null || salesEntered == "") error = true;			
	}while(error);	
	
	return salesEntered;
}

function printRow(salesPerson[][])
{
	for (i =0; i<salesPerson.length; i++)
	{
		document.write(salesPerson[i][0] + "     " + salesPerson[i][1]);
	}

}

var lightbulb = [1,1,1,0,1,0]
var banana = [0,0,1,1,0,1]

	function changetextimage(arr){
		for(var i=0;i<5;i++){
			var pixel = document.getElementById("text"+i);
				if (arr[i]) {
					pixel.style.color="#000000";
				}
				else {
					pixel.style.color="#FFFFFF";
				}
			}	
	}

$('#lightbulbpicture').mouseover(changetextimage(lightbulb));
$('#bananapicture').mouseover(changetextimage(banana));

var lightbulb = [1,1,1,0,1,0]
var banana = [0,0,1,1,0,1]

	function changetextimage1(){
		for(var i=0;i<5;i++){
			var pixel = document.getElementById("text"+i);
				if (lightbulb[i]) {
					pixel.style.color="#000000";
				}
				else {
					pixel.style.color="#FFFFFF";
				}
			}	
	}

function changetextimage2(){
		for(var i=0;i<5;i++){
			var pixel = document.getElementById("text"+i);
				if (banana[i]) {
					pixel.style.color="#000000";
				}
				else {
					pixel.style.color="#FFFFFF";
				}
			}	
	}

$('#lightbulbpicture').mouseover(changetextimage1);
$('#bananapicture').mouseover(changetextimage2);

var PieceThere = isPieceHere(ClosestX, ClosestY);


function isPieceHere(x, y)
{
 // Test to see if there is an Element at  point  x,y
 for (var i = 0; i < 32; i++)
     {
	  if (PieceLocationXcoord[i] == x)
	     {
	      if(PieceLocationYcoord[i] == y)
		     {
			  // There is a piece there
			  var Result = "True";
			 }
		 }
	 }
return Result;
}

<html> 
<head> 
            <script> 
            function Check(chk) 
            { 
            for (i=0; i < chk.length; i++) chk[i].checked=document.ListActionForm.Check_ctr.checked ; 
            } 
        function desubmit() 
            { 
            if(get_args()==false) {alert("nothing_selected");return false;} 
            if(labelling(true)) return false; 
            } 
            function labelling(s) {return true;} 
        function get_args() 
            { 
            s=chkboxa2str(document.ListActionForm['listaction[]']); 
            if(s)alert(s); 
            if(s.length<8)return false; 
            else return s; 
            } 
            function chkboxa2str(chkbox_a) {  
            var list = "";  
                for(var i = 0; i < chkbox_a.length; i++){ if(chkbox_a[i].checked) { list += chkbox_a[i].value + " "; } } 
            return list;  
            } 
            </script> 
</head> 
<body> 
<form action="?h=1296078874" method="post" name="ListActionForm" onsubmit="return desubmit()"> 
<input type='checkbox' name='listaction[]' value='2010102909103530'> Testbox 1<br> 
<input type='checkbox' name='listaction[]' value='2010102909103532'> Testbox 2<br> 
<input type="Submit" name="Submit" value="Versturen" > 
</form> 
</body> 
</html>

function resetForm(){
  	   resetGroup(document.forms[0].answer1);
  	   resetGroup(document.forms[0].answer2);
	}

function resetForm(){
	   for (var i=1; i<3; i++){
  	   resetGroup(document.forms[0]."answer"+i);
	}