// JavaScript Document

//Trim Functions

function hello ()

{

	alert (324234);

}

function ltrim (str)

{

	for (var k = 0; k < str.length && isWhitespace (str.charAt(k)); k++);

	return str.substring(k, str.length);

}

function rtrim (str)

{

	for(var j=str.length-1; j>=0 && isWhitespace(str.charAt(j)) ; j--) ;

	return str.substring(0,j+1);

}

function trim (str)

{

	return ltrim (rtrim (str));

}

function isWhitespace (charToCheck)

{

	var whitespaceChars = " \t\n\r\f";

	return (whitespaceChars.indexOf(charToCheck) != -1);

}//end of trim functions



//checking for empty fields

function is_field_empty (txtfield, errmsg, errdiv)

{

	if("" == trim ($(txtfield).value))

	{

		$(errdiv).style.display   = "block";

		$(errdiv).innerHTML       = errmsg;

		$(txtfield).value         = '';

		$(txtfield).focus();

		return false;

	}

	else

	{

		$(errdiv).innerHTML       = "";

		$(errdiv).style.display   = "none";

	}

}

function is_drop_down_empty (sltfield, errmsg, errdiv)

{

	if("" == trim ($(sltfield).value) || 0 == trim ($(sltfield).value))

	{

		$(errdiv).style.display   = "block";

		$(errdiv).innerHTML       = errmsg;

		$(sltfield).focus();

		return false;

	}

	else

	{

		$(errdiv).innerHTML       = "";

		$(errdiv).style.display   = "none";

	}

}

//username checking

function isValidUserName(val)

{

	if (val.match(/^[a-zA-Z0-9_]+$/)){

		if(val.match(/^[_]+$/)){

			return false;

		}else{

			return true;

		}

	}else{

		return false;

	}

}

function check_username(txtfield,errmsg,errdiv)

{

	if(!isValidUserName($(txtfield).value))

	{

		$(errdiv).style.display="block";

		$(errdiv).innerHTML=errmsg;

		$(txtfield).select();

		return false;

	}

	return true;

}

//email validation functions

function isValidEmail(email)

{

	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i

	if (filter.test(email))

	{

		return true;

	}

	else

	{

		return false;

	}

}

function check_email(txtfield,errmsg,errdiv)

{

	if(!isValidEmail($(txtfield).value))

	{

		$(errdiv).style.display="block";

		$(errdiv).innerHTML=errmsg;

		$(txtfield).select();

		return false;

	}

	return true;

}//end of email validation functions



function check_numeric(txtfield,errmsg,errdiv)

{

	if(isNaN($(txtfield).value))

	{

		$(errdiv).style.display="block";

		$(errdiv).innerHTML=errmsg;

		$(txtfield).select();

		return false;

	}

	else

	{

		$(errdiv).style.display="none";

	}

}//end of number validation function



//phone number validation function

function check_phone_number(txtfield,errmsg,errdiv)

{

	var element_value	=	$(txtfield).value;

	if(element_value != '')

	{

		var reg = /[^\d]/;

		if(reg.test(element_value) || (element_value.length <7 || element_value.length >10) )

		{

			$(errdiv).style.display="block";

			$(errdiv).innerHTML=errmsg;

			$(txtfield).focus();

		return false;

		}

		return true;

	}

}



function regenerate_captcha(url)

{

    url = '/user/regenerate_captcha';

    url = base_url + url;

	new Ajax.Request(url,{

	                       method      : "post",

	                       onSuccess   : update_captcha_div,

	                       onFailure   : disp_error

	                     }

	                );

}



function update_captcha_div(resp_obj)

{

    $("captcha_display").innerHTML = resp_obj.responseText;

}



function disp_error(resp_obj)

{

   alert("Unable to complete the request. Please try after some time.");

}