function _coloredTDs(r,c){
	var cl='';
	if (typeof(r)!='object'){r=document.getElementById(r);}
	if (typeof(document.getElementsByTagName)!='undefined'){cl=r.getElementsByTagName('td');}
	else if (typeof(r.cells)!='undefined') {cl=r.cells;}
	else {return false;}
	for (var i=0;i<cl.length;i++) {
		cl[i].className=c;
	}
}