function esi_tooltip(obj){
    obj.qtip({
            content: false,
            show: 'mouseover',
            hide: 'mouseout',
            style: {
                name: 'light',
                border: {
                    width: 2,
                    radius: 5
                },
                padding: 10,
                textAlign: 'center',
                tip: true,
                width: {
                    min: 300,
                    max: 300
                }
            },
            position: {
                corner: {
                    target: 'topMiddle',
                    tooltip: 'bottomMiddle'
                }
            }



        });
}