function pop_disclaimer(){

	if(Get_Cookie( 'is_visited' ) != "yes"){

		var win_width = 720;
		var win_height = 410;

		var winl = (screen.width - win_width) / 2;  
    	var wint = (screen.height - win_height) / 2; 
		
		windowName = "Disclaimer_Popup";
        options  = "";
        options += "toolbar=0,";
        options += "location=0,";
        options += "directories=0,";
        options += "status=0,";
        options += "menubar=0,";
        options += "scrollbars=0,";
        options += "resizable=0,";
        options += "width=";   
		options += win_width;
        options += ",height="; 
		options += win_height;
		options += ",top=";
		options += wint;
		options += ",left=";
		options += winl;
        win = window.open("disclaimer.htm", windowName , options);
		Set_Cookie( 'is_visited', 'yes', '', '/', '', '' );
	}
}


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=" : "" ) + 
( ( path ) ? ";path=" + path : "" ) + 
( ( domain ) ? ";domain=" + domain : "" ) +
( ( secure ) ? ";secure" : "" );
}


// this function gets the cookie, if it exists
function Get_Cookie( name ) {
	
var start = document.cookie.indexOf( name + "=" );
var len = start + name.length + 1;
if ( ( !start ) &&
( name != document.cookie.substring( 0, name.length ) ) )
{
return null;
}
if ( start == -1 ) return null;
var end = document.cookie.indexOf( ";", len );
if ( end == -1 ) end = document.cookie.length;
return unescape( document.cookie.substring( len, end ) );
}


function closeWin() {
	  win = top;
	win.opener = top;
	win.close ();
}

function previous_page() {
	Set_Cookie( 'is_visited', 'no', '', '/', '', '' );
	win = top;
	opener.window.history.go(-1);
	win.opener = top;		
	win.close ();	
}