Question

I am building a project and in that project the user is going to input a date eg. 8/2/2011. then i am going to show them the information for the week that contains 8/2/2011. How can you figure out which week to show? for this project i am using javascript, jquery, and php.

Answer 1

You should be able to do what you want by getting the first day of the week the given date occurs in.

If your weeks start on Monday:

Date.prototype.lastMonday=function(){
    var d= new Date(this), weekstart= 1;    
    while(d.getDay()!== 1) d.setDate(d.getDate()-1)
    return d;
}

alert(new Date().lastMonday())

//returns the current date if does fall on a Monday