function display(id,val) {
    $(id).style.display = val;
}

function disabled(id,val) {
    $(id).disabled = val;
}
function setvalue(id,val) {
    $(id).value = val;
}

function trim(s){
 	return rtrim(ltrim(s)); 
}
function ltrim(s){
 	return s.replace(/^\s*/, ""); 
} 
function rtrim(s){ 
 	return s.replace(/\s*$/, ""); 
}