javascript - Function for mouse near an element in jQuery -


i want track , show tooltip when mouse near table head element. works mouseenter event, want show tooltip before mouseenter, when gets near. want remove tooltip after mouseout distance table head.

this code.

$('thead').mouseenter(showtooltip); $('thead').mouseout(removetooltip);

how can jquery?

this works. first parameter can jquery object. second parameter nearness object, in case 20px.

demo: http://jsfiddle.net/thinkingstiff/lpg8x/

script:

$( 'body' ).mousemove( function( event ) {      if( isnear( $( 'thead' ), 20, event ) ) {         //show tooltip here     } else {         //hide here     };  });             function isnear( element, distance, event ) {      var left = element.offset().left - distance,         top = element.offset().top - distance,         right = left + element.width() + 2*distance,         bottom = top + element.height() + 2*distance,         x = event.pagex,         y = event.pagey;      return ( x > left && x < right && y > top && y < bottom );  };

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