/*******************************************************************
* JavaScript Font Sizer 
* (c) DB Design, All rights are reserved
* http://phpscriptindex.com, phpsales@gmail.com
********************************************************************
* Script will allow user to visually change font size. Font size 
* will persist thru page change using a cookie.
********************************************************************
* Directions: Change fontElementId var to the element id you wish to
* allow users to change font sizes. 
********************************************************************
* Tip: Next span element inside normal div to inherit parent style
* but enable use to change font size.
*******************************************************************
* FireFox 2.0.0.3 Tested
* MS IE 7 Tested
* Netscape 8.1.2 Tested
* Opera 9.1 Tested
******************************************************************/
var fontElementId = "content"; //CHANGE ME TO YOUR ELEMENT ID

/* Module Change Font (string) */
function changeFont(fontClass){
var element = document.getElementById(fontElementId);
element.className = fontClass;
Set_Cookie("fontSize", fontClass, 5, '/');
}		
/* Module Set Default Font Size (void) */
function setDefaultFontSize(){
var fontSize = Get_Cookie("fontSize")
if(fontSize){
	var element = document.getElementById(fontElementId);
	element.className = fontSize;
}
}
function Set_Cookie( name, value, expires, path, domain, secure ){
Delete_Cookie( name, path, domain );
// 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" : "" );
}
// this fixes an issue with the old method, ambiguous values
// with this test document.cookie.indexOf( name + "=" );
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;
}
}
// this deletes the cookie when called
function Delete_Cookie( name, path, domain ) {
if ( Get_Cookie( name ) ) document.cookie = name + "=" +
( ( path ) ? ";path=" + path : "") +
( ( domain ) ? ";domain=" + domain : "" ) +
";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}