Jin Yong questions

• Does anyone know how can I keep the Javascript variable even though the page has been refreshed?
• Combine multiple results into a single string in SQL Server
• how can I default selected value in asp:DropDownList
• Play a sound on page load using JavaScript
• Get mode value in java
• Disabled the a tag (link) by using javascript
• Copy text to clipboard from div with javascript
• How can I cut the 1st char from a string in jquery?
• How can I validate the date is not the future date in .net c#
• Converting dates in JavaScript

Jin Yong answers