Datepicker: Modified _updateDatepicker to not update display if updated instance is not current instance. Fixed #6814 - datepicker('setDate') incorrectly overwrites current display with two datepickers.

Author: Maciej Mroziński

ui/jquery.ui.datepicker.js

@@ -708,6 +708,9 @@ $.extend(Datepicker.prototype, {
 
 	/* Generate the date picker content. */
 	_updateDatepicker: function(inst) {
+		if ($.datepicker._curInst && inst != $.datepicker._curInst) {
+			return;
+		}
 		this.maxRows = 4; //Reset the max number of rows being displayed (see #7043)
 		var borders = $.datepicker._getBorders(inst.dpDiv);
 		instActive = inst; // for delegate hover events