rem: Ext.get(document.body).addClass("x-body-masked"); 
add: Ext.getBody().addClass("x-body-masked"); 
context:     beforeShow : function(){        this.expand();        if(this.fixedcenter){            this.xy = this.el.getCenterXY(true);        }        if(this.modal){            Ext.get(document.body).addClass("x-body-masked");            this.mask.setSize(Ext.lib.Dom.getViewWidth(true), Ext.lib.Dom.getViewHeight(true));            this.mask.show();        }        this.constrainXY();    },
meta: 2891	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/2891/d109eea1e59fbb030ac98e95f181f72da9611a48/ext-all-debug.js/buggy/gemma-web/src/main/webapp/scripts/ext/ext-all-debug.js