increment=10 //amount of items per page
page=whatever //user specified, we read this in
max=page*increment //the highest item number that will be shown on any page (eg, 10 for page 1)
min=max-increment

items=[all inputs read in and processed and whatever. in some kind of array type structure]
total_items=count(items)
max_page=round up (total_items/increment)
for(int i=min; i++; i<=max) {
	output items[i]
}

for(int i=1; i++; i<=max_page} {
	if (i == page)
		outout page number //no link if it's the current page
	else
		output (link page)
}