function switch_top() {
	var cPath = window.location.pathname;
	var cPage = cPath.substring(cPath.lastIndexOf('/') + 1);
	//var cPage = cPath.substring(cPath.lastIndexOf('\\') + 1);
	var char3 = cPage.substring(0, 3);
	var char4 = cPage.substring(0, 4);
	var char5 = cPage.substring(0, 5);
	var char7 = cPage.substring(0, 7);
	if (char3 == "TMP") 
	{
		MM_swapImage('top_description','','../images/NavTop_welcome.gif',1);
	}
	if (char7 == "Templat") 
	{
		MM_swapImage('top_description','','../images/NavTop_welcome.gif',1);
	}
	if (char3 == "BR1") 
	{
		MM_swapImage('top_description','','../images/NavTop_welcome.gif',1);
	}
	if (char3 == "BR2") 
	{
		MM_swapImage('top_description','','../images/NavTop_things.gif',1);
	}
	if (char3 == "BR3") 
	{
		MM_swapImage('top_description','','../images/NavTop_make.gif',1);
	}
	if (char3 == "BR4") 
	{
		MM_swapImage('top_description','','../images/NavTop_events.gif',1);
	}
	if (char4 == "BrV_") 
	{
		MM_swapImage('top_description','','../images/NavTop_events.gif',1);
	}
	if (char7 == "Chamber") 
	{
		MM_swapImage('top_description','','../images/NavTop_chamber.gif',1);
	}
}

window.onload=switch_top;