function changeStyle(color,bgcolor,bdcolor){
	eventSource=event.srcElement
	if(eventSource.tagName=="TR"||eventSource.tagName=="TABLE"){
		return
	}
	while(eventSource.tagName!="TD"){
		eventSource=eventSource.parentElement
	}
	eventSource.style.color=color
	eventSource.style.backgroundColor=bgcolor
	eventSource.style.borderColor=bdcolor
}
function restoreStyle(color,bgcolor,bdcolor){
	eventSource=event.srcElement
	if(eventSource.tagName=="TR"||eventSource.tagName=="TABLE"){
		return
	}
	while(eventSource.tagName!="TD"){
		eventSource=eventSource.parentElement
	}
	eventSource.style.color=color
	eventSource.style.backgroundColor=bgcolor
	eventSource.style.borderColor=bdcolor
}