function LTrim(str) {
    var whitespace = new String(" \t\n\r");
    var s = new String(str);
    if (whitespace.indexOf(s.charAt(0)) != -1) {
        var j=0, i = s.length;
        while (j < i && whitespace.indexOf(s.charAt(j)) != -1)
              j++;
              s = s.substring(j, i);
    }
    return s;
}
function RTrim(str) {
    var whitespace = new String(" \t\n\r");
    var s = new String(str);
    if (whitespace.indexOf(s.charAt(s.length-1)) != -1) {
        var i = s.length - 1;       
        while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1)
              i--;
              s = s.substring(0, i+1);
    }
    return s;
}
function Trim(str)  { return RTrim(LTrim(str)); }

function Validate(theForm)
{
  //----------------------------------------------------------------------------
    document.getElementById('FirstNameVal').style.color='';
	document.getElementById('NameStar').style.color='';
	document.getElementById('LastStar').style.color='';
    document.getElementById('LastNameVal').style.color='';
    document.getElementById('EmailVal').style.color='';
	document.getElementById('EmailStar').style.color='';
    //document.getElementById('PWDVal').style.color='';
    var FlagValid=0;
  //----------------------------------------------------------------------------
    if (Trim(theForm.FirstName.value)=='') {
        document.getElementById('FirstNameVal').style.color='red';
        FlagValid=1
    }
	if (Trim(theForm.FirstName.value)=='') {
        document.getElementById('NameStar').style.color='red';
        FlagValid=1
    }
    if (Trim(theForm.LastName.value)=='') {
        document.getElementById('LastNameVal').style.color='red';
        FlagValid=1
    }
	 if (Trim(theForm.LastName.value)=='') {
        document.getElementById('LastStar').style.color='red';
        FlagValid=1
    }
  //---Email Start---------------------------------------------------------------
    var checkStr = theForm.Email.value;
    var ch = checkStr.indexOf('@');
    if (ch==0 || ch==-1) {
        document.getElementById('EmailVal').style.color='red';
		document.getElementById('EmailStar').style.color='red';
        FlagValid=1
    }
    var checkOK = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzfSOZsozYÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõöøùúûüýþ0123456789@.-_'";
    var checkStr = theForm.Email.value;
    var allValid = true;
    for (i=0; i<checkStr.length; i++) {
         ch = checkStr.charAt(i);
         for (j=0; j< checkOK.length; j++)
              if (ch==checkOK.charAt(j))
                  break;
              if (j==checkOK.length) {
                  allValid = false;
                  break;
              }
         }
         if (!allValid) {
             document.getElementById('EmailVal').style.color='red';
			  document.getElementById('EmailStar').style.color='red';
             FlagValid=1;
    }
  //---Email End---------------------------------------------------------------
  //  if (Trim(theForm.PWD.value)=='') {
//        document.getElementById('PWDVal').style.color='red';
//        FlagValid=1
//    }
  //----------------------------------------------------------------------------
    if (FlagValid==1)
    {
        alert("Por favor, rellene los campos obligatorios en rojo.");
        return (false);
    }
    return (true);
  //----------------------------------------------------------------------------
}