function cUtil()
{
this.isNS = cuti_isNS; //* Devuelve true si es NS
this.isIE = cuti_isIE; //* Devuelve true si es IE
this.setSelectSelected = cuti_setSelectSelected;  // Activa un campo de un SELECT de FORMULARIO
}
function cuti_isNS()
{
if (document.layers) 
	return true;
return false;
}
function cuti_isIE()
{
if (document.all)
	return true;
return false;
}
function cuti_setSelectSelected(nameObjSelect,valor)
{
	var auxOptions,numOption;
	var i = 0;
	
	auxOptions=document.getElementById(nameObjSelect).options;
	numOption=document.getElementById(nameObjSelect).options.length;
    for(i=0;i<numOption;i++){
        if (auxOptions[i].value.toUpperCase() == valor.toUpperCase() )
			{
			auxOptions.selectedIndex=i;
			return true;			
			}
		}
	return false;
}



oUtil = new cUtil();