function chk_username()
	{
		var username = $F('user_name');

		//var url = '/forms/pricelists/view';
		var url = 'chk_users.php';

		var pars = 'usrname=' + username;
	var myAjax = new Ajax.Request(
			url,
			{
				method: 'POST',
				parameters: pars,
				onComplete: showResponse
			});
		
	}
	
	function showResponse(originalRequest)
	{
		//put returned XML in the textarea
		
		$('resp').innerHTML = originalRequest.responseText;
		//alert("asfas");
		
		
	}
	function chk_email()
	{
		var emailad = $F('email');

		//var url = '/forms/pricelists/view';
		var url = 'chk_email.php';

		var pars = 'eml=' + emailad;
	var myAjax = new Ajax.Request(
			url,
			{
				method: 'POST',
				parameters: pars,
				onComplete: showResponseeml
			});
		
	}
	
	function showResponseeml(originalRequest)
	{
		//put returned XML in the textarea
		
		$('resp_eml').innerHTML = originalRequest.responseText;
		
		
		
	}