js style动态设置table高度_javascript技巧

直接在table标签中设置下不就行了吗？这是静态的，如果要动态设置你会吗？

function com_onresize(){

var contentsHeight = document.body.clientHeight;
var buttonsHeight = document.getElementById( "buttons" ).offsetHeight;
var head1Height = document.getElementById( "head1" ).offsetHeight;
var head2Height = document.getElementById( "head2" ).offsetHeight;

var t1 = document.getElementById( "TableContainer1" ).style.height;
var t2 = document.getElementById( "TableContainer2" ).style.height;

//alert(document.getElementById( "TableContainer1" ).style.height);
var h = contentsHeight - buttonsHeight - head1Height - head2Height - 13;
if(h