Passing a value from PHP to JavaScript

<?php
    echo "<SCRIPT LANGUAGE='javascript'>add dd_Employee('".$id1."','".$fname1."',".$sal1.");</SCRIPT>";
    echo "<SCRIPT LANGUAGE='javascript'>add dd_Employee('".$id2."','".$fname2."',".$sal2.");</SCRIPT>";
    ....

?>
...

var details=new Array();

function addEmployee(id,fname,salary){
    var temp=new Array(id,fname,salary);
    details[details.length]=temp;
    alert(temp);
}

function displayEmployee(){
    for (var i=0;i<details.length;i++)
        var temp_details=details[i];

    //Display the id,name,sal
    var id=temp_details[0];
    var name=temp_details[1];
    var sal=temp_details[2];

    alert(id);
    alert(name);
    alert(sal);
}

<?php
print "details[details.length] = new Array('$id1', '$name1', '$salary1');n";
?>

function displayEmployee(){
    for(var i=0;i<details.length;i++) {

        var temp_details= details[i];

        //display the id,name,sal
        var id=temp_details[0];
        var name=temp_details[1];
        var sal=temp_details[2];

        alert(id);
        alert(name);
        alert(sal);
    }
}

<?php
echo "<SCRIPT LANGUAGE='javascript'>addEmployee({id:'".$id1."', name: '".$fname1."', salary:".$sal1."});</SCRIPT>";
// ...
echo "<SCRIPT LANGUAGE='javascript'>addEmployee({id:'".$id2."', name: '".$fname2."', salary:".$sal2."});</SCRIPT>";
// ...
?>

var details=new Array();

function addEmployee(employeeObj){
 details[details.length]=employeeObj;

 alert(employeeObj);
}
function displayEmployee(){
    for(var i=0;i<details.length;i++) {
        alert(details[i].id);
        alert(details[i].name);
        alert(details[i].salary);
    }
}

echo "<SCRIPT LANGUAGE='javascript'>add dd_Employee('".$id1."','".$fname1."',".$sal1.");</SCRIPT>";

echo "<SCRIPT LANGUAGE='javascript'>addEmployee('".$id1."','".$fname1."',".$sal1.");</SCRIPT>";

<?php
$employeeList[] = array('sdf3434', 'Bob', 123.34);
$employeeList[] = array('wer335dg', 'Joe', 223);
?>
<html>
<head>
<script>
function Employees() {
    this.list = new Array();
}
Employees.prototype.add = function (id, fname, sal) {
    this.list.push(new Array(id, fname, sal));
};
Employees.prototype.display = function () {
    for(var i=0, t = this.list.length;i<t;i++) {
        var emp = this.list[i];
        alert(emp[0]);
        alert(emp[1]);
        alert(emp[2]);
    }
};
var employees = new Employees();
<?php
foreach ($employeeList as $employee) {
    list($id, $fname, $sal) = $employee;
    printf("employees.add('%s', '%s', %f);n", $id, $fname, $sal);
}
?>
</script>
</head>
<body>
<a href="#" onclick="employees.display();">click</a>
</body>
</html>