function(icon) {
        var me = this,
            isEmpty = !icon || !icon.length,
            iconCmp = me.iconCmp;

        me.icon = icon;
        if (!me.iconCmp && !isEmpty) {
            me.initIconCmp();
            me.insert(0, me.iconCmp);
        } else if (iconCmp) {
            if (isEmpty) {
                me.iconCmp.destroy();
                delete me.iconCmp;
            } else {
                iconCmp.setSrc(me.icon);
            }
        }
    }
function(icon) {
        var me = this,
            isEmpty = !icon || !icon.length,
            iconCmp = me.iconCmp;

        me.icon = icon;
        if (!me.iconCmp && !isEmpty) {
            me.initIconCmp();
            me.insert(0, me.iconCmp);
        } else if (iconCmp) {
            if (isEmpty) {
                me.iconCmp.destroy();
                delete me.iconCmp;
            } else {
                iconCmp.setSrc(me.icon);
            }
        }
    }
function ( icon ) { var me = this , isEmpty = ! icon || ! icon . length , iconCmp = me . iconCmp ; me . icon = icon ; if ( ! me . iconCmp && ! isEmpty ) { me . initIconCmp ( ) ; me . insert ( 0 , me . iconCmp ) ; } else if ( iconCmp ) { if ( isEmpty ) { me . iconCmp . destroy ( ) ; delete me . iconCmp ; } else { iconCmp . setSrc ( me . icon ) ; } } }
Sets the image path that provides the icon image for this header.  This method will replace any existing
icon if one has already been set.
@param {String} icon The new icon path
Sets the image path that provides the icon image for this header . This method will replace any existing icon if one has already been set .