Carriage return when using a variable in a body of an email

[CEdmeades]

Hi, I will try and explain my problem the best I can.

Basically, I'm trying to set up a form that emails the entered fields to my email address but I can't separate the four lines that go in the body of the message.

function createBody(){
a = "Sales Code of "+document.requestForm.name.value+": "+document.requestForm.repcode.value;

b = "Stationary to be ordered: "+document.requestForm.stationary.value;

c = "Quantity required: "+document.requestForm.quantity.value;

d = "Reason given: "+document.requestForm.reason.value;
result = a +"\n"+ b +"\n"+ c +"\n"+ d
return result}

this is the function that creates the body of the email. When I put alert(result) it has each variable on separate lines. When I then try to put it into the body of an email:

window.location = "mailto:"+u+"?subject="+m+"&body="+createBody();

"u" and "m" are just the recipient and subject variables...

it puts the body all on one line. How do I fix this? I've thought making the createBody() function return a variable with HTML coding but I don't know how to make the email encoded in HTML (just puts the code in plain text).

On another note, what expression can i use instead of window.location=... so that it automatically sends the email without bringing up the outlook dialog box, requiring me to click send manually.

THANKYOU IF YOU CAN HELP!!!

Cam