hotspot coordinates on the screen to use them in js code

How to get current coordinates of hotspot that depend on current view? I mean x and y not ath, atv. Then how to display them to let me read them. I have been doing sth like that in javascript:

alert(myVariable);

How to send them to javascript funcion.

I need this help because my js code should display an information iframe box that should be positioned in a certain distance from hotspot on click event.
Thank you

Thanks for the advice, Andrey. I try to use that function but not succeeded yet. What could be wrong in that code:

<hotspot name="close" url="plugins/textfield.swf"
		handcursor="true"
		selectable="false"
		children="false"
		width="100" height="20"
		ath=".03" atv="-.05"
		html="[p]salut[/p]"
		css="p{color:#ff0000; font-family:Arial; font-weight:bold; font-size:24; margin-left:5; margin-right:5;}"
		background="false"
		autosize="center"
		alpha=".7"
		onclick="js(makeFrame());"
		onhover="showtext(spheretoscreen(get('ath'),get('atv')))"
		/>

The last line (with onhover) displays just the code not screen coordinates values as I expected.

EDIT------------------------------------------------------
it nearly worked but I cannot make showtext display both coordinates but one.
So that worked:

<action name='showCoor'>
 		spheretoscreen(ath,atv,q,w);
 		showtext(get(q));
	</action>

and that not:

<action name='showCoor'>
 		spheretoscreen(ath,atv,q,w);
 		showtext(get(q) + ' ' + get(w));
	</action>

Any ideas?

EDIT-----------------------------------------
I've managed it succesfully:

<action name='showCoor'>
 		spheretoscreen(ath,atv,q,w);
 		txtadd(e ,get(q),'___',get(w),);
 		showtext(get(e));
	</action>

Thank you

Ok, so now it's clear for me. :)