k=!1;null!=a&&a!=e&&a!=f;){isNaN(a.scrollLeft)||isNaN(a.scrollTop)||(g.x+=a.scrollLeft,g.y+=a.scrollTop);var l=mxUtils.getCurrentStyle(a);null!=l&&(k=k||"fixed"==l.position);a=b?a.parentNode:null}!k&&c&&(a=mxUtils.getDocumentScrollOrigin(d),g.x+=a.x,g.y+=a.y);return g},convertPoint:function(a,b,c){var d=mxUtils.getScrollOrigin(a,!1);a=mxUtils.getOffset(a);a.x-=d.x;a.y-=d.y;return new mxPoint(b-a.x,c-a.y)},ltrim:function(a,b){return null!=a?a.replace(new RegExp("^["+(b||"\\s")+"]+","g"),""):null},