function contact_overlay(tid){
	var thediv=document.getElementById('display_overlay');
	var top_margin = ((window.getSize().y - 518) / 2);
	if (top_margin < 0) { top_margin = 5; }

	if(thediv.style.display == "none"){
		thediv.style.display = "";
		thediv.innerHTML = "<div id='overlay_table' style='margin: "+top_margin+"px auto 0 auto;' ><table><tr><td><div class='maintitle' style='text-align: right;'><span style='color: #fff;'>[<a href='#' onclick='return contact_overlay();' style='color: #fff; font-weight: bold; font-size: 16px;'>X</a>]&nbsp;<a href='#' onclick='return contact_overlay();' style='color: #fff; font-weight: bold'>CLOSE WINDOW</a><span></div><iframe width='733px' height='518px' scrolling='no' frameborder=0 marginwidth=0 marginheight=0 border=0 src='/includes/contact.php?tid="+ tid +"'></iframe></td></tr></table></div>";
	}else{
		thediv.style.display = "none";
		thediv.innerHTML = '';
	}
	return false;
}

function images_overlay(aid, tid){
	var thediv=document.getElementById('images_overlay');

        var ScreenSize = window.getSize().x;
       	var test_overlay_width = ( window.getSize().x );
       	var test_overlay_height = ( window.getSize().y );
	var overlay_width = 0;
	var overlay_height = 0;

 	if ( test_overlay_width < 800 ) {

	        overlay_width = 747;
        	overlay_height = overlay_width / 4 * 3;

	} else if ( test_overlay_width <= 1024 && test_overlay_width >= 800) {

                overlay_width = test_overlay_width;
                overlay_height = test_overlay_width / 4 * 3;

        } else if ( test_overlay_width >= 1024 && test_overlay_width <= 1280 ) {

                overlay_width = test_overlay_width;
                overlay_height = test_overlay_width / 4 * 3;

        } else if ( test_overlay_width > 1280 && test_overlay_width < 1600 ) {

                overlay_width = test_overlay_width;
                overlay_height = test_overlay_width / 4 * 3;

        } else if ( test_overlay_width >= 1600 ) {

                overlay_width = 1280;
                overlay_height = 1280 / 4 * 3;

        }

	var overlay_margin = ((window.getSize().y - overlay_height) / 2);

	if (overlay_height > test_overlay_height) {

		overlay_height = test_overlay_height - 50;
		overlay_width = (test_overlay_height - 50) / 3 * 4;
		overlay_margin = 25;
	}

	if ( overlay_width < 750 ) {

/*		overlay_height = test_overlay_height - 100; */ /* 750 / 4 * 3; */
		overlay_width = 750; 
/*		overlay_margin = 25; */
	}
	
/*
	if ( test_overlay_width > 728) {
        	var overlay_width = ( window.getSize().y - 50 ) / 3 * 4;
	        var overlay_height = window.getSize().y - 50;
	} else {
	        var overlay_width = 747;
        	var overlay_height = overlay_width / 4 * 3;
	}
*/

	if(thediv.style.display == "none"){
		thediv.style.display = "";
		thediv.innerHTML = "<div id='overlay_images' style='margin: "+ overlay_margin +"px auto 0 auto; width: "+ overlay_width +"px; height: "+ overlay_height +"px;'><table style='width: "+ (overlay_width - 12) +"px; height: "+ (overlay_height - 5) +"px;'><tr><td><div class='maintitle' style='text-align: right;'><span style='color: #fff;'>[<a href='#' onclick='return images_overlay();' style='color: #fff; font-weight: bold; font-size: 16px; text-decoration: none;'>X</a>]&nbsp;<a href='#' onclick='return images_overlay();' style='color: #fff; font-weight: bold; text-decoration: none;'>CLOSE WINDOW</a><span></div><iframe width='"+ (overlay_width - 14)+"px' height='"+(overlay_height - 50)+"px' scrolling='no' frameborder=0 marginwidth=0 marginheight=0 border=0 src='/includes/images.php?id="+ aid +"&tid="+ tid +"&width="+overlay_width+"&height="+overlay_height+"'></iframe></td></tr></table></div>";
	}else{
		thediv.style.display = "none";
		thediv.innerHTML = '';
	}
	return false;
}