resize html table TDs with javascript -


i have html table:

<table>     <tr>         <td id="c0">bla</td>         <td class="resizor" id="c01" onmousedown="setposition(event);" onmouseover="setresizecolumns(&#39;c01&#39;, &#39;c0&#39;, &#39;c1&#39;);">&nbsp;</td>         <td id="c1">bla</td>         <td class="resizor" id="c12" onmousedown="setposition(event);" onmouseover="setresizecolumns(&#39;c12&#39;, &#39;c1&#39;, &#39;c2&#39;);">&nbsp;</td>         <td id="c2" >bla</td>     </tr>     <tr>         <td>blu</td>         <td></td>         <td>blu</td>         <td></td>         <td>blu</td>     </tr>     <tr>         <td>blu</td>         <td></td>         <td>blu</td>         <td></td>         <td>blu</td>     </tr> </table>

and js script:

var minsize=0; var _startposition = 0; var _diffposition = 0; var _allowmove = false; var _resizercolumn = null; var _firstcolumn = null; var _secondcolumn = null; var _resizercolumnleft = 0; var _resizercolumnwidth = 0; var _firstcolumnleft = 0; var _firstcolumnwidth = 0; var _secondcolumnleft = 0; var _secondcolumnwidth = 0; var _systemevent = null; if (navigator.appname == 'netscape') {     document.captureevents(event.mousemove | event.mouseup | event.onload); } document.onmouseup = disablemousemovement; document.onmousemove = setnewposition; function setposition(e) {     // called onmousedown event     if (navigator.appname == 'netscape') {     _systemevent = e;     } else {     _systemevent = event;     }     _startposition = _systemevent.clientx;     _allowmove = true;       _resizercolumnleft = findposx(_resizercolumn);     _resizercolumnwidth = _resizercolumn.offsetwidth; //_resizercolumn.style.width;     _firstcolumnleft = findposx(_firstcolumn);     _firstcolumnwidth = _firstcolumn.offsetwidth; //_firstcolumn.style.width;     _secondcolumnleft = findposx(_secondcolumn);     _secondcolumnwidth = _secondcolumn.offsetwidth; //_secondcolumn.style.width;     return true; }  function setresizecolumns(resizercolumn, firstcolumn, secondcolumn) {     // called onmouseover event     // resizercolumn actual object of column moved     // firstcolumn , secondcolumn can resized.     // firstcolumn have dimensions either grown or shrunk.     // secondcolumn have exact opposite done firstcolumn has.     // if firstcolumn shrink 60px, secondcolumn grown 60px, opposite holds true.     resizercolumn=document.getelementbyid(resizercolumn);     firstcolumn=document.getelementbyid(firstcolumn);     secondcolumn=document.getelementbyid(secondcolumn);     if (_allowmove == false) {         _resizercolumn = resizercolumn;         _firstcolumn = firstcolumn;         _secondcolumn = secondcolumn;     }     return true; }  function disablemousemovement(e) {     // called onmouseup event     _allowmove = false;     return false; }  function setnewposition(e) {     // called onmousemove event     // begin_hack setposition() can work.     if (navigator.appname == 'netscape') {     _systemevent = e;     } else {     _systemevent = event;     }     // end_hack     newposition = _systemevent.clientx;     if (_allowmove) {         _diffposition = _startposition - newposition;          var tpos1 = (parseint(_firstcolumnwidth) - parseint(_diffposition)) ;         var tpos2 = (parseint(_secondcolumnwidth) + parseint(_diffposition)) ;         if (tpos1<minsize) return;         if ((tpos2<minsize) && (_firstcolumnwidth>tpos1)) return;         if (tpos2<0) tpos2=0;         if (tpos1<0) tpos1=0;          _firstcolumn.style.width = tpos1+ "px";         _secondcolumn.style.width = tpos2+ "px";     }     return true; }  function findposx(obj) {     var curleft = 0;     if (obj.offsetparent){         while (obj.offsetparent){             curleft += obj.offsetleft             obj = obj.offsetparent;         }     }     else if (obj.x)     curleft += obj.x;     return curleft; }  function findposy(obj){     var curtop = 0;     if (obj.offsetparent){         while (obj.offsetparent){             curtop += obj.offsettop             obj = obj.offsetparent;         }     }     else if (obj.y)     curtop += obj.y;     return curtop; }

i want resize <td> on 100% of table's width , didnt stop resizing adding horizental scroll not fixed 100% of screen problem code fix width 100% (see demo). there solution ?

live demo

three changes required.

1st change - pass parameter determining col has been selected (removing other information clarity)

 <td onmousedown="setposition(event,1);" />  <td onmousedown="setposition(event,2);" />

2nd change - save col has been selected

function setnewposition(e,col) { colselected = col; ... }

3rd change - change width based on col has been selected

if(colselected == 1)  _firstcolumn.style.width = tpos1+ "px"; else if(colselected == 2)  _secondcolumn.style.width = tpos2+ "px";

update: try instead - _firstcolumn.style.width = tpos1+ "px"; //_secondcolumn.style.width = tpos2+ "px";

though recommend check out these questions - resizable table columns bz code

also following jsfiddle http://jsfiddle.net/tpqn7/


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