function validate()
{
	var accessid=document.login_form.username.value;
	var password=document.login_form.password.value;

	if(accessid == false)
	{
		alert ("Please Enter Username");
		document.login_form.username.focus();
		return false;
	}
	if(password == false)
	{
		alert ("Please Enter Password");
		document.login_form.password.focus();
		return false;
	}
}

function check_password_form()
{
	if(document.change_password_form.old_password.value=="")
	{
		alert("Please enter the Old Password.");
		document.change_password_form.old_password.focus();
		return false;
	}
	if(document.change_password_form.new_password.value=="")
	{
		alert("Please enter the New Password.");
		document.change_password_form.new_password.focus();
		return false;
	}
	if(document.change_password_form.confirm_new_password.value=="")
	{
		alert("Please reenter the New Password.");
		document.change_password_form.confirm_new_password.focus();
		return false;
	}
	if(document.change_password_form.new_password.value != document.change_password_form.confirm_new_password.value)
	{
		alert("Password Mismatch. Reenter again!");
		document.change_password_form.new_password.value="";
		document.change_password_form.confirm_new_password.value="";
		document.change_password_form.new_password.focus();
		return false;
	}

}
function chk_all()
{
 frm = document.forms[0];
  elem_count = frm.elements.length;
  for(i=0;i<elem_count;i++)
  {
   if(frm.selall.checked==true && frm.elements[i].type == "checkbox")
   frm.elements[i].checked = true;
  else
   frm.elements[i].checked = false;

 }
}

function chkselcount(chk_name)
{
      flag=0;
      frm = document.forms[0];
      elem_count = frm.elements.length;
 for(i=0;i<elem_count;i++)
 {
   if(frm.elements[i].name == chk_name && frm.elements[i].type=="checkbox" && frm.elements[i].checked==false)
   {
        flag=1;
        break;
   }
 }

 if(flag==0)
     frm.selall.checked=true;
 else
  frm.selall.checked=false; 
}