hi i am doing a project now i going to use ajax to retrieve coordinate from the json in html and pin the coordinate onto a point on the map using javascript but the problem is i am only able to use one point on the map can tell me what to add in ? or how should i change it with? p.s it will be nice if u can change the code from the below and show me how

Code:
function addSymbol() {
if (omap.map.getLayer("symbolLayer")
...