!! multiplechoice=2 the same as =1 (just 1 option is good) but than drag and drop
!! $hpx , $wpx give the width and height of the drag div.
<script type="text/javascript" src="$jsdir/wz_dragdrop.js">
</script>
!set DHTML=$empty
!if $wpx=$empty
!set wpx=100
!endif
!if $hpx=$empty
!set hpx=50
!endif
<div align="center">
<table border=1 width="100%" bgcolor=$bgcolor1 cellpadding=$cellpadding cellspacing=$cellspacing>
<td valign="top" align="left">
$(question$n)
!if $exotext!=$empty
<br>
<small>
<em>
$exotext
</em>
</small>
!endif
</td>
<tr>
<td valign="top" align="center">
<table border=1 width="100%">
<td valign="top" align="left" width="40%">
!if $draw=1
!set insdraw_size=$XSIZE,$YSIZE
!endif
!if $plot=1
!set insplot_set=$(image_settings$n)
!endif
!for p=1 to $options
<div "id="div$p" name="div$p" style="position:relative;border:thin solid red;">
<br><br>
!if $multiimage=1
!if $draw=1
!insdraw $(ex$p)
!else
!insplot $(ex$p)
!endif
!else
!if $math=0
$(ex$p)
!else
!insmath $(ex$p)
!endif
!endif
!set DHTML=!append item "div$p" to $DHTML
<br><br>
</div>
!next p
<div id="?" name="?" style="position:relative;border:thin solid blue">
<br><br>
$dontknow
!set DHTML=!append item "?" to $DHTML
</div>
</td>
<td valign="center" align="center">
<div id="target" name="target" style="padding:20px; border:thin solid green; margin:25px;">
!if $(formula$n) != $empty
!insmath $(formula$n)
!endif
!if $image=1
!if $(image$n)!=$empty
!if $draw=1
!set insdraw_size=$xsize,$ysize
!insdraw $(image$n)
!else
!set insplot_set=$(image_settings$n),size $xsize,$ysize
!insplot $(image$n)
!endif
!endif
!endif
!set DHTML=!append item "target" to $DHTML
</div>
</td>
</table>
</td>
</table>
</div>
<script type="text/javascript">
SET_DHTML( CURSOR_MOVE , $DHTML);
</script>
<script type="text/javascript">
function my_DropFunc()
{
var delta=100;
var X=dd.elements.target.x;
var Y=dd.elements.target.y;
!! var W=dd.elements.target.w;
!! var H=dd.elements.target.h;
var answer=dd.obj.name;
var x=dd.obj.x;
var y=dd.obj.y;
if(x<X+delta && x>X-delta && y>Y-delta && y<Y+3*delta)
{
!! dd.obj.moveTo(dd.elements.target.x, dd.elements.target.y);
dd.obj.moveTo(X,Y-50);
!!dd.obj.setBgColor('lightgreen');
answer=answer.replace(/[a-z]/g,'');
answer=encodeURIComponent( answer );
var URL = '$wims_refname?session=$session&module=$module&cmd=reply&+reply$n='+answer
document.location.href = URL;
!if $debug=1
alert('developerdebug: div-element no '+answer);
!endif
}
else
{
dd.obj.moveTo(dd.obj.defx,dd.obj.defy);
}
dd.obj='null';
}
</script>