Попробуйте
$(function() {
$("#cursorH1").draggable();
InitializeScale();
});
function InitializeScale() {
$('#cursorH1').on('mousemove', function() {
$('#cursorH1').css({
'-ms-filter': 'progid:DXImageTransform.Microsoft.Alpha(Opacity=75)',
'filter': 'alpha(opacity=75)',
'-moz-opacity': '0.75',
'-khtml-opacity': '0.75',
'opacity': '0.75'
});
$('#cursorH1').on('mousemove', MoveScale(this));
});
$('#cursorH1').on('mouseup', function() {
$('#cursorH1').css({
'-ms-filter': 'progid:DXImageTransform.Microsoft.Alpha(Opacity=35)',
'filter': 'alpha(opacity=35)',
'-moz-opacity': '0.35',
'-khtml-opacity': '0.35',
'opacity': '0.35'
});
//$('#cursorH1').off('mousemove');
});
}
function MoveScale(e) {
var offTop = e.offsetTop;
var offLeft = e.offsetLeft;
$('#lineH1').css('left', offLeft + 15);
}