function Disab(val) {
frm=frm=document.Aya
if(val=="enabl")
{frm.Button1.disabled=false;frm.Button2.disabled=false}
if(val=="buttn1")
{frm.Button1.disabled=true;frm.Button2.disabled=false}
if(val=="buttn2")
{frm.Button1.disabled=false;frm.Button2.disabled=true}
if(val=="disabl")
{frm.Button1.disabled=true;frm.Button2.disabled=true}
}

function check(val) {
if(val!="buttn2")
  {
  document.getElementById("data1").checked=true
  }

}