var opener_top_element;
var opener_bottom_element;
var opener_text_top_element;
var opener_shadow_element;
var opener_height;
var opener_step = 0;
var opener_timer;
var opener_stage = 1;
var logo_top_element;
var logo_bottom_element;
var estates_element;
var current_menu;
var dropdown_menu_id;
var dropdown_menu_height;
var menu_dropdown_timer = 0;
var menu_out_id = 0;
var clicked_rate_id

function start_display()
{
	opener_top_element = document.getElementById( 'opener_top' );
	opener_bottom_element = document.getElementById( 'opener_bottom' );
	opener_text_top_element = document.getElementById( 'opener_text_top' );
	opener_shadow_element = document.getElementById( 'opener_shadow' );
	logo_top_element = document.getElementById( 'logo_top' );
	logo_bottom_element = document.getElementById( 'logo_bottom' );
	estates_element = document.getElementById( 'estates' );
	shine_top_element = document.getElementById( 'opener_shine_top' );
	shine_bottom_element = document.getElementById( 'opener_shine_bottom' );

	opener_height = parseInt( get_window_height() / 2 );

	opener_top_element.style.height = opener_height;
	opener_bottom_element.style.top = opener_height;
	opener_bottom_element.style.height = opener_height;
	
	opener_text_top_element.style.top = opener_height - 63;
	opener_shadow_element.style.top = opener_height;

	opener_top_element.style.visibility = 'visible';
	opener_bottom_element.style.visibility = 'visible';

	shine_top_element.style.left = ( opener_top_element.offsetWidth - 960 ) / 2;
	shine_top_element.style.visibility = 'visible';

	shine_bottom_element.style.left = ( opener_bottom_element.offsetWidth - 960 ) / 2;
	shine_bottom_element.style.visibility = 'visible';

	window.setTimeout( 'start_open()', 2000 );
}

function get_window_height()
{
	var window_height;

	window_height = window.innerHeight;

	if ( window_height == undefined )
	{
		window_height = document.documentElement.clientHeight;

		if ( window_height <= 0 )
		{
			window_height = document.body.clientHeight;
		}
	}

	return window_height;
}

function start_open()
{
	document.getElementById( 'page_body' ).style.visibility = 'visible';
	opener_timer = window.setInterval( 'open_display()', 25 );
}

function open_display()
{
	if ( opener_stage == 1 )
	{
		opener_step += 8;

		if ( opener_step < opener_height )
		{
			opener_top_element.style.height = opener_height - opener_step;
			opener_bottom_element.style.height = opener_height - opener_step;
		}
		else
		{
			opener_top_element.style.visibility = 'hidden';
			opener_bottom_element.style.visibility = 'hidden';

		}

		opener_bottom_element.style.top = opener_height + opener_step;

		opener_text_top_element.style.top = opener_height - opener_step - 63;
		opener_shadow_element.style.top = opener_height - opener_step;

		if ( opener_height - opener_step < -25 )
		{
			opener_top_element.style.display = 'none';
			opener_bottom_element.style.display = 'none';

			opener_stage = 2;
			opener_step = 0;
		}
	}
	else if ( opener_stage == 2 )
	{
		opener_step += 4;

		logo_top_element.style.top = opener_step - 104;
		logo_bottom_element.style.top = 200 - opener_step;

		if ( opener_step >= 104 )
		{
			opener_stage = 3;
			opener_step = 0;
		}
	}
	else
	{
		opener_step += 2;

		set_opacity( estates_element, opener_step );

		if ( opener_step >= 100 )
		{
			window.clearInterval( opener_timer );
			opener_timer = 0;
		}
	}
}

function on_pow_timer()
{
	pow_step -= 10;

	pow_office1_element.style.left = -pow_step;
	pow_title1_element.style.left = pow_step;
	pow_office2_element.style.left = pow_step;
	pow_title2_element.style.left = -pow_step;

	if ( pow_step <= 0 )
	{
		window.clearInterval( pow_timer );
		pow_timer = 0;
	}	
}

function set_opacity( opacity_object, opacity_percent )
{
	opacity_object.style.opacity = opacity_percent / 100;
	
	if ( opacity_percent == 100 )
	{
		opacity_object.style.filter = '';
	}
	else
	{
		opacity_object.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(Opacity=' + String( opacity_percent ) + ')';
	}

	if ( opacity_percent == 0 )
	{
		opacity_object.style.visibility = 'hidden';
	}
	else
	{
		opacity_object.style.visibility = 'visible';
	}
}

function start_page( menu_id )
{
	current_menu = menu_id;

	if ( menu_id != 0 )
	{
		menu_element = document.getElementById( 'menu' + menu_id );
		menu_element.style.height = '720px';
	}

	set_menu_classes( current_menu, 0 );
}

function on_start_menu_scroll()
{
	if ( menu3_scroll_timer != 0 )
	{
		window.clearInterval( menu3_scroll_timer );
		menu3_scroll_timer = 0;
	}

	current_menu3 = ( current_menu3 % 3 ) + 1;
	next_menu3 = ( current_menu3 % 3 ) + 1;

	current_menu3_element = document.getElementById( 'menu3_title' + current_menu3 );
	next_menu3_element = document.getElementById( 'menu3_title' + next_menu3 );
	menu3_highlight_element = document.getElementById( 'menu3_highlight' );

	menu3_scroll_step = 0;

	menu3_scroll_timer = window.setInterval( 'on_menu3_scroll()', 20 );
}

function on_menu3_scroll()
{
	if ( menu3_scroll_step >= 134 )
	{
		window.clearInterval( menu3_scroll_timer );
		menu3_scroll_timer = 0;
	}
	else if ( menu3_scroll_step >= 124 )
	{
		menu3_scroll_step++;

		set_opacity( menu3_highlight_element, ( 134 - menu3_scroll_step ) * 10 );
	}
	else if ( menu3_scroll_step >= 120 )
	{
		menu3_scroll_step++;
	}
	else
	{
		menu3_scroll_step += 6;

		current_menu3_element.style.top = -menu3_scroll_step;
		next_menu3_element.style.top = 120 - menu3_scroll_step;

		if ( menu3_scroll_step >= 102 )
		{
			set_opacity( menu3_highlight_element, ( menu3_scroll_step - 96 ) * 25 / 6 );
		}
	}
}

function mouse_over_menu( menu_id )
{
	popup_element = document.getElementById( 'more_info_popup' );

	if ( popup_element != null )
	{
		popup_element.style.display = 'none';
	}

	if ( menu_out_id == menu_id )
	{
		menu_out_id = 0;
	}
	else
	{
		if ( menu_out_id != 0 )
		{
			on_mouse_out_menu_timer();
		}

		if ( ( current_menu != menu_id ) && ( dropdown_menu_id != menu_id ) )
		{
			set_menu_classes( current_menu, menu_id );

			dropdown_menu_id = menu_id;
			dropdown_menu_height = 192;

			start_menu_dropdown_timer();
		}
	}
}

function mouse_out_menu( menu_id )
{
	if ( current_menu != menu_id )
	{
		menu_out_id = menu_id;

		window.setTimeout( 'on_mouse_out_menu_timer()', 20 );
	}
}

function on_mouse_out_menu_timer()
{
	if ( menu_out_id != 0 )
	{
		menu_element = document.getElementById( 'menu' + menu_out_id );
		menu_element.style.height = '191px';

		set_menu_classes( current_menu, 0 );

		if ( dropdown_menu_id == menu_out_id )
		{
			stop_menu_dropdown_timer();
			dropdown_menu_id = 0;
		}

		menu_out_id = 0;
	}
}

function start_menu_dropdown_timer()
{
	stop_menu_dropdown_timer();

	menu_dropdown_timer = window.setInterval( 'on_dropdown_timer()', 20 );
}

function stop_menu_dropdown_timer()
{
	if ( menu_dropdown_timer != 0 )
	{
		window.clearInterval( menu_dropdown_timer );
	}
}

function on_dropdown_timer()
{
	dropdown_menu_height += 33;

	if ( dropdown_menu_height >= 720 )
	{
		dropdown_menu_height = 720;

		stop_menu_dropdown_timer();
	}

	document.getElementById( 'menu' + dropdown_menu_id ).style.height = dropdown_menu_height + 'px';
}

function goto_page( url )
{
	window.location.href = url;
}

function set_menu_classes( current_menu, open_menu )
{
	var menu_class = new Array();

	if ( current_menu == 0 )
	{
		menu_class[ 1 ] = 'menu';
		menu_class[ 2 ] = 'menu';
		menu_class[ 3 ] = 'menu';
		menu_class[ 4 ] = 'menu';

		if ( open_menu != 0 )
		{
			menu_class[ open_menu ] = 'menu menu_open';
		}
	}
	else
	{
		menu_class[ 1 ] = 'menu menu_mask';
		menu_class[ 2 ] = 'menu menu_mask';
		menu_class[ 3 ] = 'menu menu_mask';
		menu_class[ 4 ] = 'menu menu_mask';

		if ( open_menu == 0 )
		{
			menu_class[ current_menu ] = 'menu menu_open';
		}
		else
		{
			menu_class[ current_menu ] = 'menu menu_open_mask';
			menu_class[ open_menu ] = 'menu menu_open';
		}
	}

	document.getElementById( 'menu1' ).className = menu_class[ 1 ];
	document.getElementById( 'menu2' ).className = menu_class[ 2 ];
	document.getElementById( 'menu3' ).className = menu_class[ 3 ];
	document.getElementById( 'menu4' ).className = menu_class[ 4 ];
}

function get_dropdown_value( element_id )
{
	element = document.getElementById( element_id );

	return element.options[ element.selectedIndex ].value;
}

function request_details( rate_id )
{
	clicked_rate_id = rate_id;

	document.getElementById( 'more_info_popup' ).style.display = 'block';

	document.getElementById( 'more_info_name' ).focus();
}

function more_info_on_return( event )
{
	var keynum
	var keychar
	var numcheck

	if( window.event ) // IE
	{
		keynum = event.keyCode;
	}
	else if( event.which ) // Netscape/Firefox/Opera
	{
		keynum = event.which;
	}

	if ( keynum == 13 )
	{
		send_more_info_request();
	}
}

function send_more_info_request()
{
	var ajax_post_data = new Array();

	ajax_post_data[ 'name' ] = document.getElementById( 'more_info_name' ).value;
	ajax_post_data[ 'tel_no' ] = document.getElementById( 'more_info_tel_no' ).value;
	ajax_post_data[ 'email' ] = document.getElementById( 'more_info_email' ).value;
	ajax_post_data[ 'message' ] = document.getElementById( 'more_info_message' ).value;
	ajax_post_data[ 'rate_id' ] = clicked_rate_id;

	get_ajax_data( 'send_more_info_request.php', ajax_post_data, process_more_info_response );
}

function process_more_info_response( data )
{
	fields = data.split( '|' );

	if ( fields[ 0 ] == '1' )
	{
		window.alert( fields[ 1 ] );

		document.getElementById( 'more_info_popup' ).style.display = 'none';
	}
	else if ( fields[ 0 ] == '0' )
	{
		window.alert( fields[ 1 ] );
	}
	else
	{
		window.alert( data );
	}
}

function close_more_info()
{
	document.getElementById( 'more_info_popup' ).style.display = 'none';
}