In a list of items, this figures out where then end of a row is at any particular given time. 1. box_width = the width of a item in the list 2. work_width = the width of the container for the list

gistfile1.js

/*
  Based on the item you click on, this function
	figures out the ending index of that particular item's row.
*/

function getRow(index){
	//this is the number of items that can fit in a row
	var row = Math.floor(box_width / work_width);
	//var insertpoint = index + row;
	
	//this is the number of rows that the contents go vertically
	var v_row = Math.floor(parseInt(works[0].style.height) / work_height);
	
	// figure out which indicies mark the end of a row, this will
	// be the index to insert the "open" view for a item
	var ends = [];
	for(var i = 0;i<v_row;++i){
		ends.push(((row * i) + row) -1 );
	}
	
	
	//get the row we clicked on(Just take the first indice
	var possible = [];
	//now figure out what row we're on.
	for(var a = 0;a<ends.length;++a){
		if(index < ends[a]){
			possible.push(a+=1);
		}else if(index == ends[a]){

			return ends[a];
		
		}
	}
	var end = ends[possible[0]-1];
	
	
	return end;

}