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isInRange("div232","div235",4);

isInRange("div230","div235",4);

function isInRange(tag1,tag2,sqs) {

/*
If you go up one row in the map, the div tag is += 30 automatically
Likewise, if you go down, the div tag is -= 30, therefore,
the offset is 30
*/

var offset = 30;

//Getting the number on its own; changes 'div213' to '213'
var tag_1 = parseInt(tag1.replace("div", ""));
var tag_2 = parseInt(tag2.replace("div", ""));
var totalOffset = offset * sqs; //The total offset (furthest away)
var currentX = tag_1 - totalOffset; //Furthest north directly above tag1 (default)

//How many loops to go through, e.g sqs=2 .. 2 rows above , 2 below and the 1 middle row
var loops2 = sqs * 2; //
var total_loops = loops2 += 1; //Add on the row tag1 is on (mid row)

//Creating some default variables which are used inside the loop
var minX = 0;
var maxX = 0;
var i=0;
for (i=0;i<=total_loops;i++)
{
minX = currentX - sqs; //The smallest in range for this row
maxX = currentX + sqs; //The largest in range for this row

if(tag_2 >= minX && tag_2 <= maxX)
{
return true; //Houston, we are in range
}

currentX = currentX + offset; //Go up one row for the next loop (30 divs)
}

return false; //Houston, we have a problem
}