jQuery search box input content to find whether the code in the table matches

code segment:

function search(){
// Get the value of the search box
var kwds = $("#searchInput").val();
// Get the first list content
var this_one = {};
var real_name = '';
// Define data list
var list = $("#all_list .list_one");
// Define the starting value for search
var true_one = 0;
for (var i = 0; i < list.length; i++) {
This_one = $(list[i]);

Real_name = this_one.text().toString();
// Execute like matching
If(real_name.match(kwds)){
// Process the current result
          if(true_one == active){
​ ​ ​ // Get the width and height of the window
        var windows_wdh = $(window).width();
        var windows_hgt = $(window).height();
                  // Get the first coordinate
var x_len = this_one.offset().left;
var y_len = this_one.offset().top;
​ ​ ​ // Drive the scroll bar to scroll to the specified position
            $("html,body").animate({scrollTop:(y_len-windows_hgt/2), scrollLeft:(x_len-windows_wdh/2)},500);
                 // Mark the currently selected results
This_one.addClass('active');
This_one.removeClass('on');
      }else{
​ ​ ​ // Mark the matching results
This_one.addClass('on');
This_one.removeClass('active');
      }
// Accumulate real choices
        true_one++;
}else{
This_one.removeClass('on');
} }
}
// Determine whether the search is completed. If the search is completed, start from the first one, otherwise continue to search for the next one
active = active >= true_one-1 ? 0 : active+1;

Return false;
}