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<table id="tableCreate" width="268" border="1" cellpadding="0" cellspacing="0">
<tr>
<th scope="col" width="40%">name</th>
<th scope="col">time</th>
</tr>
</table>
var t = document.getElementById("tableCreate");
alert(t.rows.length);
var leg = t.rows.length;
for(var u=0;u<leg;u++){
alert(u);
if(u!=0){
t.deleteRow(1);
}
}
var t = document.getElementById("tableCreate");
while(t.rows.length>1){
t.deleteRow(1);
}
var table=document.getElementById('table1');
while(table.rows.length!=1){
table.deleteRow(table.rows.length-1);
};
var t = document.getElementById("tableCreate");
for(var u=0;u<t.rows.length;u++){
if(u!=0){
t.deleteRow(u);
}
}