// JavaScript Document
function Obligatorio(oForm) {
	len=oForm.value.length;
	if (len<1) {
		oForm.style.color='red'
		oForm.value="Required field"
	}
}
function Entrardatos(oForm) {
	if ((oForm.value=="Required field")||(oForm.value=="There was a problem with the sending. Please try again later")){
		oForm.value=''
		oForm.style.color='black'
	}
}