/*
* GENERAL FUNCTIONS
* 
* Window and screen handling functions
*
*/






/**************************************** Window and screen handling functions ***************************************************/


//page global variables
var window_width, window_height, screen_width, screen_height, avail_width, avail_height;

var pop_win_ref;

//function to get page dimensions
function getPageDimensions() 
{
	window_width = (is_ie) ? document.body.clientWidth : window.innerWidth;
	window_height = (is_ie) ? document.body.clientHeight : window.innerHeight;
	
	avail_width = screen.availWidth;
	avail_height = screen.availHeight;
	
	screen_width = screen.width;
	screen_height = screen.height;
}


//function get xy (returns string for pop up properties
function getWinXY (win_width,win_height) 
{		
	//get page dimensions if not already set
	if (screen_width == null) getPageDimensions();
	
	//determine x y of centered window
	var xpos = Math.round(((avail_width - win_width)/2));
	var ypos = Math.round(((avail_height - win_height)/2)) - ((screen_height - avail_height)/2);	
	
	win_width = (is_ie && is_mac) ? (win_width - 20) : win_width;
	
	//start return string
	var return_string = 'width='+win_width+',height=' + win_height;
	
	//return relevant string
	if (is_nav && (is_major <=4)) return (return_string + ',screenX=' + xpos + ',screenY=' + ypos)
	else return (return_string + ',left=' + xpos + ',top=' + ypos)
}


//futura general popup function (centres on page)
function popWin (file_name,win_name,win_width,win_height,is_scroll,is_resize,config) 
{
	//create conf_string for popup
	var conf_string = getWinXY(win_width,win_height);
	if (is_scroll == 'auto') conf_string += ',scrollbars=auto'
	else conf_string += (is_scroll) ? ',scrollbars=yes' : ',scrollbars=no';
	conf_string += (is_resize) ? ',resizable=yes' : ',resizable=no';
	if (config != null) conf_string += config;
	//window.alert(conf_string);
	//open window and set to focus
	//if (pop_win_ref && (!pop_win_ref.closed)) pop_win_ref.close();
	pop_win_ref = window.open(file_name,win_name,conf_string);
	window.setTimeout('window.pop_win_ref.focus()', 1000);
}


function resizeWin(file_name,obj_win,new_width,new_height)
{
	//set resize offsets (window appears smaller when resized compared to pop up)
	var width_offset = (is_ie) ? 10 : 5;
	var height_offset = 60;
	
	//add offsets to new width and heights
	new_width += width_offset;
	new_height += height_offset;
	//window.alert(new_width + ' - ' + new_height);
	
	//get page dimensions if not already set
	if (screen_width == null) getPageDimensions();
	
	//determine x y of centered window based on new width and heights
	var xpos = Math.round(((avail_width - new_width)/2));
	var ypos = Math.round(((avail_height - new_height)/2));	

	//window.alert('resize window');
	obj_win.blur();
	obj_win.moveTo(xpos,ypos);
	obj_win.resizeTo(new_width,new_height);
	obj_win.document.location.replace(file_name);
	obj_win.focus();
}

//function to make embed tag
function makeFlashEmbed(clipRef, clipSrc, clipWidth, clipHeight, bgColour)
{
	var d = document;

	d.writeln('<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ');
	d.writeln('		codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" ');
	d.writeln('		width="' + clipWidth + '" ');
	d.writeln('		height="' + clipHeight + '" ');
	d.writeln('		id="' + clipRef + '" ');
	d.writeln('	<param name="allowScriptAccess" value="sameDomain" />');
	d.writeln('	<param name="movie" value="' + clipSrc + '" />');
	d.writeln('	<param name="quality" value="high" />');
	d.writeln('	<param name="bgcolor" value="' + bgColour +'" />');
	d.writeln('	<param name="wmode" VALUE="transparent" />');
	d.writeln('	<param name="LOOP" value="false">');
	d.writeln('	<embed  src="' + clipSrc + '" ');
	d.writeln('			quality="high" ');
	d.writeln('			bgcolor="' + bgColour +'" ');
	d.writeln('			width="' + clipWidth + '" ');
	d.writeln('			height="' + clipHeight + '" ');
	d.writeln('			name="' + clipRef + '" ');
	d.writeln('			loop="false"');
	d.writeln('			wmode="transparent"');
	d.writeln('			allowScriptAccess="sameDomain" ');
	d.writeln('			type="application/x-shockwave-flash" />');
	d.writeln('</object>');
};