function trim(p_str)
{
   var i=0;
   while(1)
   {
     if ( p_str.charAt(0)==" " || p_str.charAt(0)=="\n" || p_str.charAt(0)=="\r") 
       p_str = p_str.substr(i+1);
     else
       break;
    } 
   
   while(1)
   {
     i=p_str.length;
     if ( p_str.charAt(i-1)==" " || p_str.charAt(i-1)=="\n" || p_str.charAt(i-1)=="\r") 
       p_str=p_str.substr(0,i-1);
     else
       break;
   }
  return p_str; 
}
function validlogin()
	{
			obj=document.login
 			obj.username.value=trim(obj.username.value);
			if(obj.username.value == "")
			{
				alert("Please Enter LoginId");
				obj.username.focus();
				return false;
			}
			obj.password.value=trim(obj.password.value);
			if(obj.password.value == "")
			{
				alert("Please Enter  Password");
				obj.password.focus();
				return false;
			}
		return true;
	}

function validregisttion()
{
		obj=document.f_one
		obj.txtname.value=trim(obj.txtname.value);
		if(obj.txtname.value == "")
		{
			alert("Please Enter First Name");
			obj.txtname.focus();
			return false;
		}
 
		obj.txtemail.value=trim(obj.txtemail.value);
		if(obj.txtemail.value == "")
		{
			alert("Please Enter Email Address");
			obj.txtemail.focus();
			return false;
		}
		 if (obj.txtemail.value!="")
		{ 
		  var eaddress=obj.txtemail.value;
		  var domain = eaddress.substring(eaddress.indexOf('@') + 1);
		  if (domain.indexOf('.') == -1) { alert("Please enter valid 'Email'"); return false;}
		  if (domain.indexOf('.') == 0 || domain.indexOf('.') == domain.length - 1) { alert("Please enter valid 'Email'");
			obj.txtemail.focus();
			return false;}
		}

		obj.txtusername.value=trim(obj.txtusername.value);
		if(obj.txtusername.value == "")
		{
			alert("Please Enter User Name");
			obj.txtusername.focus();
			return false;
		}
 
		obj.txtpassword.value=trim(obj.txtpassword.value);
		if(obj.txtpassword.value == "")
		{
			alert("Please Enter  Password");
			obj.txtpassword.focus();
			return false;
		}
	return true;
}

function forget_password()
{
window.open("forget_password.php","","resizable=yes,width=400,height=300,scrollbars=no,status=no,top=75,screenY=255,left=200,screenX=350,toolbar=no,directories=no,status=yes,menubar=no");
}
function validask()
{
	obj=document.askexpert
	obj.txtque.value=trim(obj.txtque.value);
	if(obj.txtque.value == "")
	{
		alert("Please Enter  Your Question");
		obj.txtque.focus();
		return false;
	}
}

function check_uncheck(form,val)
{
	var fs = form.elements["chk[]"];
	for(var i =0;i < fs.length;i++)
	{
		if(val == "checkall")
			fs[i].checked = true;
		else if(val == "uncheckall")
			fs[i].checked = false;
	}
}