SSDM-55: Refactored isDateValid function to avoid 'unknown variable error'

ui-eln-lims/src/core-plugins/eln-lims/1/as/webapps/eln-lims/html/js/util/Util.js

@@ -504,22 +504,16 @@ var Util = new function() {
 	}
 
 	this.isDateValid = function(dateAsString, isDateOnly) {
+	    var result = {isValid : true};
         if (dateAsString) {
             var timeValueObject = Util.parseDate(dateAsString);
 
             if(timeValueObject.getFullYear() !== parseInt(dateAsString.substring(0,4))) {
-                isValid = false;
-                error = "Incorrect Date Format. Please follow the format " + (isDateOnly ? 'yyyy-MM-dd (YEAR-MONTH-DAY)' : 'yyyy-MM-dd HH:mm:ss (YEAR-MONTH-DAY : HOUR-MINUTE-SECOND)') + ".";
-            } else {
-                isValid = true;
+                result.isValid = false;
+                result.error = "Incorrect Date Format. Please follow the format " + (isDateOnly ? 'yyyy-MM-dd (YEAR-MONTH-DAY)' : 'yyyy-MM-dd HH:mm:ss (YEAR-MONTH-DAY : HOUR-MINUTE-SECOND)') + ".";
             }
-
-            return {
-                isValid : isValid,
-                error : error
-            };
         }
-        return { isValid : true}
+        return result;
 	}
 	
 	this.getFormatedDate = function(date) {