D445.diff
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	Index: branches/5.2.x/core/admin_templates/js/forms.js
	===================================================================
	--- branches/5.2.x/core/admin_templates/js/forms.js
	+++ branches/5.2.x/core/admin_templates/js/forms.js
	@@ -148,6 +148,8 @@
	Form.ScrollerH = 17;
	Form.HasChanged = false;

	+Form.reizeTimeoutId = false;
	+
	Form.Init = function(id) {
	this.Div = document.getElementById(id);
	if (!this.Div) {
	@@ -191,7 +193,13 @@

	// alert('Measuring min width now')

	- addEvent(window, 'resize', function() {Form.Resize()})
	+ // Call the "resize" event using debounce technique.
	+ $(window).resize(function () {
	+ clearTimeout(Form.reizeTimeoutId);
	+ Form.reizeTimeoutId = setTimeout(function () {
	+ Form.Resize();
	+ }, 100);
	+ });

	this.Resize(false);

	@@ -283,7 +291,7 @@
	var h = (document.all ? window.document.body.offsetHeight : window.innerHeight);

	var $div = $(this.Div);
	- var pos = $div.offset();
	+ var pos = this.GetOffsetWithoutUserScroll($div);

	h -= pos.top;

	@@ -362,6 +370,20 @@
	// print_pre(this.Controls)
	};

	+Form.GetOffsetWithoutUserScroll = function ($div) {
	+ var $ret,
	+ $wrapper_div = $div.parent(),
	+ $old_scroll_top = $wrapper_div.scrollTop();
	+
	+ $wrapper_div.scrollTop(0);
	+
	+ $ret = $div.offset();
	+
	+ $wrapper_div.scrollTop($old_scroll_top);
	+
	+ return $ret;
	+};
	+
	Form.ResetHeights = function()
	{
	for (var i = 0; i < this.Controls.length; i++) {