function esNumeric(camp){
	if (isNaN(camp.value) == true){
		return false;
	}
	else{
		return true;
	}
	
}
function onlyCharacter(objeto){
	var regexpr = /^[a-zA-Z]+(\s*[a-zA-Z])*$/;
	var cadena = objeto;
	if(!regexpr.test(cadena.value)){
		return false;
	}
}

function onlyAlfanumeric(objeto){
	var regexpr = /^[a-zA-Z0-9]+(\s?[a-zA-Z0-9])*$/;
	var cadena = objeto;
	if(!regexpr.test(cadena.value)){
		return false;
	}
}


function isDate(objeto){
	var regexpr = /^(0[1-9]|1[0-9]|2[0-9]|3[0-1])\/(0[1-9]|1[0-2])\/(200[6-9])$/;
	var cadena = objeto;
	if(!regexpr.test(cadena.value)){
		return false;
	}
}

function isSS(objeto){
	var regexpr = /^([0-9]{4})$/;
	var cadena = objeto;
	if (!regexpr.test(cadena.value)){
		return false;
	}	
}

function ltrim(obj) {
	InString = obj.value;
	n = i = 0;
	
	while (i < InString.length) {
		if (InString.charAt(i) != " ") {
			n = i
			break
		}
		i++
	}
	if (n == 0 && i == InString.length)
		obj.value = ''
	else
		obj.value = InString.substring(n, InString.length)
	return obj;
	
}
function rtrim(obj) {
	InString = obj.value;
	n = i = InString.length
	while (i > 0) {
		if (InString.charAt(i - 1) != " ") {
			n = i
			break
		}
		i--
	}
	if (n == InString.length && i == 0)
		obj.value = ''
	else
		obj.value = InString.substring(0, n);
	return obj;
}
function trim(Obj) {
	return rtrim(ltrim(Obj));	
}

function checkemail(objeto){
	 var regexpr =/^(\w+(?:\.\w+)*)@((?:\w+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/
   var cadena = objeto;
   if (!regexpr.test(cadena.value)){
			return false;
	 }
}