JavaScript client traversal control and getting parent container Object Sample code _javascript tips

1, traversing all the controls in the face
function Findcontrolall ()
{
var inputs=document.getelementsbytagname ("input");
for (j=0;j<inputs.length;j++)
if (inputs[j].type== "text")//here, find all controls with text of the page, or you can set the type of control you want to traverse
{
Inputs[j].value= ""; Empty the contents of a text box
}
}
2, traversing the controls in the specified container
function FindControl ()
{
The following table1 refers to the controls that traverse the table
var inputs = document.getElementById ("table1"). getElementsByTagName ("input");
for (Var i=0;i<inputs.length;i++)
{
if (inputs[i].type== "text")//As above, the type of control and the operation to be done can be completed as required
{
Inputs[i].value= "";
}
}
}

Get parent Container Object

Copy Code code as follows:

<div >
<input type= "button" value= "Get parent Container Object" onclick= checkboxall (this)/>
</div>

function Checkboxall (e) {
ParentNode is to get superior attributes
var obj = e.parentnode.parentnode.parentnode.getelementsbytagname ("*");}