re-calculates the skin's settings from the related attached skin CSS file
function changeSkin(name){
var file = name != "terrace" ? ('_' + name) : "";
var link = document.createElement("link");
link.onload = function(){
gantt.resetSkin(); };
link.rel="stylesheet";
link.type="text/css";
link.id = "skin";
link.href = "../../codebase/dhtmlxgantt"+file+".css";
document.head.replaceChild(link, document.querySelector("#skin"));
}
changeSkin('meadow');
Used only if you change the skin dynamically