function getImgReference(divName,imgName) 
{ 
	if (isNav4) 
	{
		return document.layers[divName].images[imgName];
	}
	else if (isIE4) 
	{
		return document.all(imgName);
	}
	else if (isCom) 
	{
		return document.images[imgName];
	}
}

function getVisibility(action) 
{ 
	if ( isNav4 ) 
	{ 
		if ( action == 'hide' ) { return 'hide'; }
		if ( action == 'show' ) { return 'show'; }
	}
	else if ( isIE4 || isCom ) 
	{
		if ( action == 'hide' ) { return 'hidden'; }
		if ( action == 'show' ) { return 'visible'; }
	}
}
	
function getDivReference(divName) 
{ 
	if (isNav4) 
	{
		return document.layers[divName];
	}
	else if (isIE4) 
	{
		return document.all(divName);
	}
	else if (isCom) 
	{
		return document.getElementById(divName);
	}
}

function getFormReference(elementName) 
{ 
	if (isNav4) 
	{
		return document.layers[elementName];
	}
	else if (isIE4) 
	{
		return document.all(elementName);
	}
	else if (isCom) 
	{
		return document.getElementById(elementName);
	}
}

function getDivStyleReference(divName) 
{ 
	divRef = getDivReference(divName);	
	
	if (isNav4) 
	{
		return divRef;
	}
	else
	{
		return divRef.style;
	}
}