// Trowbridge Custom Function Library

//Function for changing images in left and right frame on left and right click
function ChangeImages(SetCode, FrameCode, ImageNo, evt, imgs)
{
	var mbtn = event.button;
	var NewImageStyle;

	if ( (mbtn > 1) && (imgs == 2) )
	{
		NewImageStyle = "url(http://www.trowbridgegallery.com/lib/SetImg/"+ SetCode +"/"+ SetCode +"_s/"+ SetCode + ImageNo +".gif) no-repeat center center #FFF";
		document.getElementById('RightImage').style.background = NewImageStyle;
	}
	else
	{
		NewImageStyle = "url(http://www.trowbridgegallery.com/lib/SetImg/"+ SetCode +"/"+ SetCode +"_s/"+ SetCode + ImageNo +".gif) no-repeat center center #FFF";
		document.getElementById('LeftImage').style.background = NewImageStyle;
	}
}

function ChangeImagesTryptich(SetCode, FrameCode, ImageNo, evt, imgs)
{
	var mbtn = (window.Event) ? evt.which : evt.button;
	var NewImageStyle;
		
	NewImageStyle = "/lib/SetImg/"+ SetCode +"/"+ SetCode +"_s/"+ SetCode + ImageNo +".gif";
	document.getElementById('TryptichImage').src = NewImageStyle;
}

function openOverlay(DivToOpen)
{
	document.getElementById('light').style.display='block';
	document.getElementById('fade').style.display='block';
	document.getElementById(DivToOpen).style.display='block';
}

function closeOverlay(DivToClose)
{
	document.getElementById('light').style.display='none';
	document.getElementById('fade').style.display='none';
	document.getElementById(DivToClose).style.display='none';
	SetCookie("DP", "N", 365)
}

function CountdownPopup()
{
	var MaxTimeOut = 50;
	var TimeToPop = GetCookie("TTP");
	var DisplayPopup = GetCookie("DP");
	
	if(DisplayPopup == "Y")
	{
		if(TimeToPop == null)
		{
			SetCookie("TTP", MaxTimeOut, 365);
		}
		else
		{
			if(TimeToPop == 0)
			{
				openOverlay('RetailOrTrade');
				SetCookie("TTP", MaxTimeOut, 365);
			}
			else
			{
				TimeToPop = TimeToPop - 1;
				SetCookie("TTP", TimeToPop, 365);
				mytime=setTimeout('CountdownPopup()',1000);
			}
		}
	}
}

function SetCookie(cookieName,cookieValue,nDays)
{
 var today = new Date();
 var expire = new Date();
 if (nDays==null || nDays==0) nDays=1;
 expire.setTime(today.getTime() + 3600000*24*nDays);
 document.cookie = cookieName+"="+escape(cookieValue) + ";expires="+expire.toGMTString();
}

function GetCookie( 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;
	}
}