*HELP*

I need assistance in generating a random number along with an alert box. Thank you! :)

In addition, 5 seconds after the body loads, generate a random number. Multiply the random number by 10 and round to the nearest whole number. If the rounded number is a multiple of 5, display the appropriate alert message to indicate the user has been selected for a survey (please see "Document Text" section below for the correct message). For example: Thank You for Choosing Sunrise Coffee Creations Sunrise Coffee Creations is a family-owned establishment located in Dallas, TX. We are dedicated to bringing our customers the best coffee products available. From whole beans to finely-ground espressos, we offer the highest-quality coffee around Come into one of our coffee shops and enjoy our relaxing, friendly atmosphere Would you rather shop in the co relax, and shop our products onl great service and products we pr Microsoft Internet Explorer You have been randomly selected to partiopate in a customer satsfaction survey. OK Alert message Welcome, Joe. We hope you will enjoy your Sunrise Coffee Creations experience