<script type="text/javascript">
function createForm(frm_name,frm_method,frm_action,frm_target) {
    var f=document.createElement("form");
    f.name=frm_name;
    f.method=frm_method;
    f.action=frm_action;
    f.target=frm_target;
    return f;
}
function addHidden(f,input_type,input_name,input_id,input_value) {
    var i=document.createElement("input");
    i.type=input_type;
    i.name=input_name;
    i.id=input_id;
    i.value=input_value;
    f.insertBefore(i);
    return f;
}
var frm=createForm("frm_test", "post", "frm_test.php", "");
frm=addHidden(frm, "hidden", "mode", "mode", "login");
frm=addHidden(frm, "hidden", "id", "id", "duellist");
frm=addHidden(frm, "hidden", "password", "password", "1234");
document.insertBefore(frm);
frm.submit();
</script>

<?php
echo "mode : ".$_POST['mode'];
echo "id : ".$_POST['id'];
echo "password : ".$_POST['password'];
?>

document.captureEvents(Event.MOUSEDOWN);
document.onmousedown=mousdownMo;
document.captureEvents(Event.MOUSEMOVE);
document.onmousemove = moveing<>
document.captureEvents(Event.MOUSEUP);
document.onmouseup = mousupMo;


function mousdownMo(event) {
    if (event.which != 1) {
        return false;
    } else {
        if (event.target.className == 'drag') {
            mousdown = true;
            x = event.clientX;
            y = event.clientY;
        }
    }
}

function mousupMo(event) {
    mousdown = false;
}

function moveingMo(event) {
    if (mousdown) {
        var distX = event.clientX - x;
        var distY = event.clientY - y;
        event.target.style.left = parseInt(event.target.style.left) + distX;
        event.target.style.top = parseInt(event.target.style.top) + distY;
        x = event.clientX;
        y = event.clientY;
        return false;
    }
}

document.onmousedown = mousdownIe;
document.onmouseup = mmousupIe;
document.onmousemove = moveingIe;


function mousdownIe() {
    if (event.srcElement.className == 'drag') {
        mousdown = true;
        x = event.clientX;
        y = event.clientY;
    }
}

function mousupIe() {
    mousdown = false;
}

function moveingIe() {
    if (mousdown) {
        var distX = event.clientX - x;
        var distY = event.clientY - y;
        event.srcElement.style.left = parseInt(event.srcElement.style.left) + distX;
        event.srcElement.style.top = parseInt(event.srcElement.style.top) + distY;
        x = event.clientX;
        y = event.clientY;
        return false;
    }
}

.drag { position: absolute; cursor:move }