function validar(input,tipo){
	
	var bAllOk = true;
	var errColor = '#FFFFCC';
	var normalColor = '#FFFFFF';
	
	if(tipo == "string"){
		if ((input.value.length==0) || (input.value==null)) {
			input.style.backgroundColor = errColor;
			return false;
		}else{
			input.style.backgroundColor = normalColor;
			return true;
		}
	}
	
	if(tipo == "email"){
		var emailRegEx = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
		var str = input.value;
		if(str.match(emailRegEx)){
			//Email valido
			input.style.backgroundColor = normalColor;
			return true;
		}else{
			//Email invalido
			input.style.backgroundColor = errColor;
			return false;
		}
	}
	
}

function compararIgualdad(input1,input2){

	var errColor = '#FCE0E1';
	var normalColor = '#FFFFFF';
	
	if(input1.value != input2.value){
		input1.style.backgroundColor = errColor;
		input2.style.backgroundColor = errColor;
		return false;
	}else{
		input1.style.backgroundColor = normalColor;
		input2.style.backgroundColor = normalColor;
		return true;
	}
	
}