//Compatibility Javascript, for cross-browser coding.

var domain = ""; // |domain=www.bostontech.com; |

function HTMLGetElementById(hDoc, hID)
{
	//Function: HTMLGetElementByID
	//Programmer: Daniel J. Boston
	//Date: June 4, 2004
	//Revision: 0.9 [to test]
	//Purpose: Grab a pointer reference to an object regardless of platform.
	//
	
	var hElem;
	
	try
	{
		//IE
		hElem = hDoc.all(hID);
	}
	catch(e)
	{
		//NS, Mozilla codebase
		try
		{
			hElem = hDoc.getElementById(hID);
		}
		catch(e)
		{
			//Neither browser, some other error. Object not found? Fault. Non-terminal.
			errorHandle(false, e.message, e.lineNumber, "", e.number & 0xFFFF, "", "HTMLCompat.js", "Other", "In HTMLGetElementById(hDoc, hID): hDoc=" + sstr(hDoc) + " hID=" + sstr(hID));
			e = new Error();
			e.message = "Exception: Couldn't grab HTML Element in HTMLGetElementByID(): hDoc=" + sstr(hDoc) + " hID=" + sstr(hID);
			e.name = "HTMLException";
			throw e;
		}
	}
	
	return hElem;
}

function HTMLGEBI(hDoc, hID)
{
	//Function: HTMLGEBI - wrapper for HTMLGetElementByID
	//Programmer: Daniel J. Boston
	//Date: June 4, 2004 - one for all the lazy fellers out there.
	
	return HTMLGetElementById(hDoc, hID);
}

function HTMLElementAppendText(hElem, hStr)
{
	//Function: HTMLElementAppendText
	//Programmer: Daniel J. Boston
	//Date: June 4, 2004
	//Revision: 0.9 [to test]
	//Purpose: Append text to the inside tag of an HTML element regardless of platform.
	//
	// Note: This is an append function, not a replace, remove, or get function. It adds
	// 		text to the end of an object without changing the previous contents.
	
	var success = false;
	
	try
	{
		//IE
		hElem.insertAdjacentText("BeforeEnd", sstr(hStr));
		success = true;
	}
	catch(e)
	{
		try
		{
			//NS, Mozilla Codebase
			hElem.appendChild(hElem.ownerDocument.createTextNode(sstr(hStr)));
			success = true;
		}
		catch(e)
		{
			//Neither browser, some other error. Object doesn't exit? Fault. Non-terminal.
			errorHandle(false, e.message, e.lineNumber, "", e.number & 0xFFFF, "", "HTMLCompat.js", "Other", "In HTMLElementAppendText(hElem, hStr): hElem=" + sstr(hElem) + " hID=" + sstr(hStr));
			e = new Error();
			e.message = "Exception: Couldn't append text to HTML Element in HTMLElementAppendText(): hElem=" + sstr(hElem) + " hStr=" + sstr(hStr);
			e.name = "HTMLException";
			throw e;
		}
	}
	
	return success;
}

function HTMLEAT(hElem, hStr)
{
	//Function: HTMLEAT - wrapper for HTMLElementAppendText
	//Programmer: Daniel J. Boston
	//Date: June 4, 2004 - one for all the lazy fellers out there.
	
	return HTMLElementAppendText(hElem, hStr);
}

function HTMLElementReplaceText(hElem, hStr)
{
	//Function: HTMLElementReplaceText
	//Programmer: Daniel J. Boston
	//Date: June 7, 2004
	//Revision: 0.9 [to test]
	//Purpose: Replaces text of an HTML element regardless of platform.
	//
	
	var success = false;
	
	try
	{
		//IE
		if (hElem.innerText != undefined)
		{
			hElem.innerText = sstr(hStr);
			success = true;
		}
		else
		{
			throw new Error();
		}
	}
	catch(e)
	{
		try
		{
			//NS, Mozilla Codebase
			hElem.normalize();
			var textChild;
			if (hElem.hasChildNodes())
			{
				for (var fText = 0; fText < hElem.childNodes.length; fText ++)
				{
					if (hElem.childNodes.item(fText).nodeType == 3)
					{
						hElem.replaceChild(hElem.ownerDocument.createTextNode(sstr(hStr)),hElem.childNodes.item(fText));
						success = true;
						break;
					}
				}
			}else{
				hElem.appendChild(hElem.ownerDocument.createTextNode(sstr(hStr)));
				success = true;
			}
		}
		catch(e)
		{
		//	alert(String(e.message) + "|" + String(e.lineNumber) + "|" + String(e.number & 0xFFFF));
			//Neither browser, some other error. Object doesn't exit? Fault. Non-terminal.
			errorHandle(false, e.message, e.lineNumber, "", e.number & 0xFFFF, "", "HTMLCompat.js", "Other", "In HTMLElementAppendText(hElem, hStr): hElem=" + sstr(hElem) + " hID=" + sstr(hStr));
			e = new Error();
			e.message = "Exception: Couldn't append text to HTML Element in HTMLElementReplaceText(): hElem=" + sstr(hElem) + " hStr=" + sstr(hStr);
			e.name = "HTMLException";
			success = false;
			throw e;
		}
	}
	//alert(success);
	return success;
}

function HTMLERT(hElem, hStr)
{
	//Function: HTMLERT - wrapper for HTMLElementReplaceText
	//Programmer: Daniel J. Boston
	//Date: June 4, 2004 - one for all the lazy fellers out there.
	
	return HTMLElementReplaceText(hElem, hStr);
}

function HTMLHasCookie(hDoc, hCookieName)
{
	//Function: HTMLHasCookie
	//Programmer: Daniel J. Boston
	//Date: June 4, 2004
	//Revision: 0.5 [Beta]
	//Purpose: Checks to see if a particular cookie exists.
	//

	toReturn = false;
	tCookies = hDoc.cookie;
	hCookieName = hCookieName + "="; //Adds "=" to put into form [name=], which is how cookies are stored.
	
	tCookieStart = tCookies.indexOf(hCookieName);
	
	if (tCookieStart > -1)
	{
		// Check to make sure this is a whole cookie name.
		
		if (tCookieStart == 0)
		{
			// It's the first cookie
			toReturn = true;
		}
		else
		{
			if (tCookies.substr(tCookieStart - 1, 1) == " ")
			{
				// Is a full cookie
				toReturn = true;
			}
			else
			{
				//Look at other cookies, then.
				while (tCookies.substr(tCookieStart - 1, 1) != " ")
				{
					//Look for another one if it isn't right off the bat.
					tCookieStart = tCookies.indexOf(hCookieName, tCookieStart+1);
					if (tCookieStart == -1)
					{
						break;
					}
				}
				
				if (tCookies.substr(tCookieStart - 1, 1) != " ")
				{
					// Is a full cookie
					toReturn = true;
				}
			}
		}
	}
	
	return toReturn;
}

function HTMLGetCookie(hDoc, hCookieName)
{
	//Function: HTMLGetCookie
	//Programmer: Daniel J. Boston
	//Date: June 4, 2004
	//Revision: 0.5 [Beta]
	//Purpose: Returns a particular cookie. Returns null if it doesn't exist.
	//

	toReturn = "";
	tCookies = hDoc.cookie;
	hCookieName = hCookieName + "="; //Adds "=" to put into form [name=], which is how cookies are stored.
	
	tCookieStart = tCookies.indexOf(hCookieName);
	
	if (tCookieStart > -1)
	{
		// Check to make sure this is a whole cookie name.
		
		if (tCookieStart == 0)
		{
			// It's the first cookie
			tCookieEnd = tCookies.indexOf(";"); // Cookies are separated by ";"
			
			if (tCookieEnd > -1)
			{
				//Multiple cookies
				toReturn = tCookies.substring(tCookieStart, tCookieEnd);
			}
			else
			{
				//Only cookie
				toReturn = tCookies;
			}
		}
		else
		{
			if (tCookies.substr(tCookieStart - 1, 1) == " ")
			{
				// Is a full cookie
				tCookieEnd = tCookies.indexOf(";", tCookieStart);
				
				if (tCookieEnd == -1) {tCookieEnd = tCookies.length;} // Last Cookie
								
				toReturn = tCookies.substring(tCookieStart, tCookieEnd);
			}
			else
			{
				//Look at other cookies, then.
				while (tCookies.substr(tCookieStart - 1, 1) != " ")
				{
					//Look for another one if it isn't right off the bat.
					tCookieStart = tCookies.indexOf(hCookieName, tCookieStart+1);
					if (tCookieStart == -1)
					{
						break;
					}
				}
				
				if (tCookies.substr(tCookieStart - 1, 1) != " ")
				{
					// Is a full cookie
					tCookieEnd = tCookies.indexOf(";", tCookieStart);
					
					if (tCookieEnd == -1) {tCookieEnd = tCookies.length;} // Last Cookie
				
					toReturn = tCookies.substring(tCookieStart, tCookieEnd);
				}
			}
		}
	}
	return toReturn;
}

function HTMLCreateCookie(hDoc, hCookieName, hCookieVal)
{
	//Function: HTMLSetCookie
	//Programmer: Daniel J. Boston
	//Date: June 4, 2004
	//Revision: 0.5 [Beta]
	//Purpose: Creates a particular cookie.
	//

	toReturn = false;
	
	tCookie = hCookieName + "=" + hCookieVal;
	
	//Gives a default lifetime of 3 months (90 days)
	tCookie = tCookie + "; expires=" + (new Date((new Date()).getTime() + 90 * 24 * 60 * 60 * 1000)).toGMTString();
	tCookie = tCookie + "; " + domain + "path=/"
	
	try
	{
		hDoc.cookie = tCookie;
		toReturn = true;
	}
	catch(e)
	{
		toReturn = false;
	}
	
	return toReturn;
}

function HTMLUpdateCookie(hDoc, hCookieName, hCookieVal)
{
	//Function: HTMLUpdateCookie
	//Programmer: Daniel J. Boston
	//Date: June 4, 2004
	//Revision: 0.5 [Beta]
	//Purpose: This is a tricksy devil. Just basically calls HTMLCreateCookie, b/c they would do the same.
	//
	
	toReturn = HTMLCreateCookie(hDoc, hCookieName, hCookieVal);
	
	// Verify that expires and other fields aren't retrieved with HTMLGetCookie....
	//    That would be icksy.
	
	return toReturn;
}
	
function HTMLClearCookie(hDoc, hCookieName)
{
	//Function: HTMLClearCookie
	//Programmer: Daniel J. Boston
	//Date: June 4, 2004
	//Revision: 0.5 [Beta]
	//Purpose: Mostly the same as HTMLCreateCookie, except sets the expire date as now and clears all data.
	//
	toReturn = false;
	
	tCookie = hCookieName + "=";
	
	//Gives a default lifetime of 3 months (90 days)
	tCookie = tCookie + "; expires=" + (new Date()).toGMTString();
	tCookie = tCookie + "; " + domain + "path=/"
	
	try
	{
		hDoc.cookie = tCookie;
		toReturn = true;
	}
	catch(e)
	{
		toReturn = false;
	}
	
	return toReturn;
}