function Colorize(Element, CBElement){
if(document.getElementById) {
	if(Element && CBElement){
		Element.className = ( CBElement.checked ? 'selected' : 'default' );
	}
}
}

function CheckTR(Element){
if(document.getElementById) {
	thisCheckbox = document.getElementById(Element.id.replace('tr','cb'));
	thisCheckbox.checked = !thisCheckbox.checked;
	Colorize(Element, thisCheckbox);
}
}

function CheckCB(Element){
if(document.getElementById) {
	
	if(document.getElementById(Element.id.replace('cb','tr')))
	{
	 Element.checked = !Element.checked;
	}
}
}