+ _showModalMask: function(comp) {
+ var zIndex = comp.el.getStyle('zIndex') - 4,
+ maskTarget = comp.floatParent ? comp.floatParent.getTargetEl() : Ext.get(comp.getEl().dom.parentNode),
+ parentBox;
+
+ if (!maskTarget) {
+ //<debug>
+ Ext.global.console && Ext.global.console.warn && Ext.global.console.warn('mask target could not be found. Mask cannot be shown');
+ //</debug>
+ return;
+ }
+
+ parentBox = maskTarget.getBox();
+