javascript hide button

[kranthiviplav]

hi,
i want to enable/disable a button when an item in the listbox control is selected.can i get a function on this

[kunal pawar]

Using javascript

document.getElementById(Button Id).disabled = false;

and if ur button is server control then
button1.enabled = true

[malav123]

HI,
Use the function given below in java script it will works for u...
function MoveItem(lstassociatedstate, lstavailablestate,f,v)
{
var hid;
var id=v;
hid = '';
if(id=="ctl00_ContentPlaceHolder1_TabAddCompany_Ta bPanel1_btnnextone")
{

if ((lstavailablestate != null) && (lstassociatedstate != null))
{
if(lstavailablestate.length < 1)
{
alert('There are no items in the source ListBox');
return false;
}
if(lstavailablestate.options.selectedIndex == -1) // when no Item is selected the index will be -1
{
alert('Please select an Item to move');
return false;
}

while ( lstavailablestate.options.selectedIndex >= 0 ) {
var newOption = new Option(); // Create a new instance of ListItem
newOption.text = lstavailablestate.options[lstavailablestate.options.selectedIndex].text;
newOption.value = lstavailablestate.options[lstavailablestate.options.selectedIndex].value;

lstassociatedstate.options[lstassociatedstate.length] = newOption; //Append the item in Target
hid = hid + lstavailablestate.options[lstavailablestate.options.selectedIndex].value + ",";
lstavailablestate.remove(lstavailablestate.options .selectedIndex); //Remove the item from Source
}
}
}
}