function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
	d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function CheckAll(id){
	var obj = MM_findObj(id, document.FormBusc);
	/*var tmp = eval('document.'+id);
	var valor = ''+tmp;
	if (valor == 'undefined') tmp = true;//alert('nuevo');
	valor = tmp;*/
	if (obj){
		if (obj.length){
			for (var i=0; i<obj.length; i++){
				if (obj[i].value!='0')	// && !obj[i].checked
					obj[i].checked = obj[0].checked;//valor;;true
				}
			}
		}
	/*eval('document.'+ id +' = !tmp');*/
	}
function UnCheck(id){
	var obj = MM_findObj(id, document.FormBusc);
	/*var tmp = eval('document.'+id);
	var valor = ''+tmp;
	if (valor == 'undefined') tmp = false;//alert('nuevo');
	valor = tmp;*/
	if (obj){
		if (obj.length){
			for (var i=0; i<obj.length; i++){
				if (obj[i].value!='0' && !obj[i].checked){
					obj[0].checked = false;
					/*eval('document.'+ id +' = true');*/
					break;
					//obj[i].checked = false;
					}
				}
			}
		}
	}