function stopPropagation(e) 
{ 
    e = e||event;/* get IE event ( not passed ) */ 
    e.stopPropagation ? e.stopPropagation() : e.cancelBubble = true; 
} 

function validEmail(email) {
	var regEx = "^[a-zA-Z0-9._%-]+@[a-zA-Z0-9._%-]+\\.[a-zA-Z]+$";
	return validate(email, regEx);
}

function validPhone(phone) {
	var regEx = "^(\\d{3}|\\(\\d{3}\\))(-|\\s?)\\d{3}(-|\\s?)\\d{4}$";
	return validate(phone, regEx);
}

function validZipcode(zipcode) {
	var regEx = "^\\d{5}([\\-]\\d{4})?$";
	return validate(zipcode, regEx);
}

function validate(field, regEx) {
	retVal = true;
	var regExp = new RegExp(regEx);
	
	if (!regExp.test(field)) {
		retVal = false;
	}
	return retVal;
}

function setFont(size) {
	if (size == null) {
		size = Get_Cookie("fontSize");
		if (size == null) {
			size = 1;
		}
	}
	
	if (size == 1) {
		$('column_left').style.fontSize = "13px";
	} else if (size == 2) {
		$('column_left').style.fontSize = "16px";
	} else if (size == 3) {
		$('column_left').style.fontSize = "18px";
	}

	Set_Cookie( 'fontSize', size, '', '/', '', '' );

}

function Set_Cookie( name, value, expires, path, domain, secure )
{
// set time, it's in milliseconds
var today = new Date();
today.setTime( today.getTime() );

/*
if the expires variable is set, make the correct
expires time, the current script below will set
it for x number of days, to make it for hours,
delete * 24, for minutes, delete * 60 * 24
*/
if ( expires )
{
expires = expires * 1000 * 60 * 60 * 24;
}
var expires_date = new Date( today.getTime() + (expires) );

document.cookie = name + "=" +escape( value ) +
( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) +
( ( path ) ? ";path=" + path : "" ) +
( ( domain ) ? ";domain=" + domain : "" ) +
( ( secure ) ? ";secure" : "" );
}

function Get_Cookie( check_name ) {
	// first we'll split this cookie up into name/value pairs
	// note: document.cookie only returns name=value, not the other components
	var a_all_cookies = document.cookie.split( ';' );
	var a_temp_cookie = '';
	var cookie_name = '';
	var cookie_value = '';
	var b_cookie_found = false; // set boolean t/f default f

	for ( i = 0; i < a_all_cookies.length; i++ )
	{
		// now we'll split apart each name=value pair
		a_temp_cookie = a_all_cookies[i].split( '=' );


		// and trim left/right whitespace while we're at it
		cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');

		// if the extracted name matches passed check_name
		if ( cookie_name == check_name )
		{
			b_cookie_found = true;
			// we need to handle case where cookie has no value but exists (no = sign, that is):
			if ( a_temp_cookie.length > 1 )
			{
				cookie_value = unescape( a_temp_cookie[1].replace(/^\s+|\s+$/g, '') );
			}
			// note that in cases where cookie is initialized but no value, null is returned
			return cookie_value;
			break;
		}
		a_temp_cookie = null;
		cookie_name = '';
	}
	if ( !b_cookie_found )
	{
		return null;
	}
}

function addLoadEvent(func) { 
	var oldonload = window.onload; 
	if (typeof window.onload != 'function') { 
		window.onload = func; 
	} else { 
		window.onload = function() { 
			if (oldonload) { 
				oldonload(); 
			} 
			func(); 
		} 
	} 
} 

function isKeyReturn(e) {
    var key;     
    if (window.event) {
        key = window.event.keyCode; //IE
	}else {
        key = e.which; //firefox     
	}
    return (key == 13);
}