function Tab(Xname,Cname,Lenght,j){
	
	for(i=1;i<Lenght;i++){eval("getObject('"+Xname+i+"').className=''");}eval("getObject('"+Xname+j+"').className='currently'");for(i=1;i<Lenght;i++){eval("getObject('"+Cname+i+"').style.display='none'");eval("getObject('"+Cname+j+"').style.display='block'");}}


function getObject(objectId) {
	if(document.getElementById && document.getElementById(objectId)) {
		// W3C DOM
		return document.getElementById(objectId);
	} else if (document.all && document.all(objectId)) {
		// MSIE 4 DOM
		return document.all(objectId);
	} else if (document.layers && document.layers[objectId]) {
		// NN 4 DOM.. note: this won't find nested layers
		return document.layers[objectId];
	} else {
		return false;
	}
}