function activate(el,name){
            var coll = document.getElementsByName(name);
            for(var i=0;i<coll.length;i++){
                coll[i].disabled = (coll[i].disabled)? false : true;
                coll[i].checked = false;
            }
    }

    function enableDist(el,name){
            var coll = document.getElementsByName(name);
            for(var i=0;i<coll.length;i++){
                coll[i].disabled = false;
                coll[i].checked = false;
            }
    }

    function disableDist(el,name){
            var coll = document.getElementsByName(name);
            for(var i=0;i<coll.length;i++){
                coll[i].disabled = true;
                coll[i].checked = false;
            }
    }


    
    function activatePswFields(formName){
		var f = document.forms[formName];
		for(var i=0;i<f.length;i++){
			if(f.elements[i].type == 'password'){
				changePswField(f.elements[i]);
			}
		}
		changePswField(document.getElementById("alias"));
	}
    
    function changeActivation(elementId){
		changePswField(document.getElementById(elementId));
	}
	
	function changePswField(obj){
		if(obj.disabled == true){
			obj.disabled = false;
			obj.className = '';
		}
		else{
			obj.disabled = true;
			obj.className = 'disabled';
		}
	}