function validatePrepareControl( sControlID, bIsRequired, sCompareTo, sRegExpression )
    {
    var oControl = document.getElementById(sControlID);
    if (oControl) 
            {
	    if (bIsRequired) oControl.setAttribute('IsRequired', '1');
	    if (sCompareTo>'') oControl.setAttribute('CompareTo', sCompareTo);
	    if (sRegExpression>'') oControl.setAttribute('RegExpression', sRegExpression);
	        }
    }

function validate(oForm) {
    var bReturn = true;

    //bReturn = (parseValidateElement( oForm, 'input' ) && bReturn)
    //bReturn = (parseValidateElement( oForm, 'select' ) && bReturn)
    //bReturn = (parseValidateElement( oForm, 'textarea' ) && bReturn)
    
    for(var x=0;x<oForm.length;x++) {
        var oChild = oForm[x]
        
        if (oChild.attributes['IsRequired'])  {
            if (oChild.attributes['IsRequired'].value='1') {
                 if ((oChild.type == 'text')||(oChild.type == 'password')||(oChild.type == 'textarea')) {
                      bReturn = (oChild.value!='');
                      if (!bReturn) inlineMsg(oChild.id,'Campo richiesto.',2);
                            }
                    }
                }
        if (1==0&&(oChild.attributes['RegExpression']))  {
            if (oChild.attributes['RegExpression'].value>'') {
                 if ((oChild.type == 'text')||(oChild.type == 'password')||(oChild.type == 'textarea')) {
                      alert(oChild.attributes['RegExpression'].value);
                      var re = new RegExp(oChild.attributes['RegExpression'].value);
                      alert(re);
                      bReturn = oChild.value.match(re);       
                      alert(oChild.value.match(re))
                      if (!bReturn) inlineMsg(oChild.id,'Indirizzo e-mail non valido.',2);
                            }
                    }
                }
        if (1==0&&(oChild.attributes['CompareTo']))  {
            if (oChild.attributes['CompareTo'].value>'') {
                 if ((oChild.type == 'text')||(oChild.type == 'password')||(oChild.type == 'textarea')) {
                      var oCompareObject = document.getElementById(oChild.attributes['CompareTo'].value);
                      if (oCompareObject)   {
                        bReturn = (oCompareObject.value==oChild.value)
                        if (!bReturn) inlineMsg(oChild.id,'I campi non coincidono.',2);
                          }
                       }   
                    }
                }	     
                
    }     
    return bReturn;  
}

function parseValidateElement(oForm, tagName)   {
    var bReturn = true;
    
    var oChilds = oForm.getElementsByTagName(tagName)
    for(var x=0;x<oChilds.length;x++) {
        var oChild = oChilds[x]
        if (oChild.className>'') 
              bReturn = checkValidateElement(oChild)
              if (!bReturn)   {
                break
                }
     }
    
    return  bReturn
}

function checkValidateElement(oElement)   {
    var bReturn = true;
    
    if ((oElement.type == 'text')||(oElement.type == 'password')||(oElement.type == 'textarea')) {
        if (oElement.className.indexOf('IsRequired')!=-1) {
            bReturn = (oElement.value!='');
            if (!bReturn) inlineMsg(oElement.id,'Campo richiesto.',2);
            }
    }
    
    return bReturn;
}

// START OF MESSAGE SCRIPT //

var MSGTIMER = 40;
var MSGSPEED = 5;
var MSGOFFSET = 3;
var MSGHIDE = 3;

// build out the divs, set attributes and call the fade function //
function inlineMsg(target,string,autohide) {
  var msg;
  var msgcontent;
  if(!document.getElementById('msg')) {
    msg = document.createElement('div');
    msg.id = 'msg';
    msgcontent = document.createElement('div');
    msgcontent.id = 'msgcontent';
    document.body.appendChild(msg);
    msg.appendChild(msgcontent);
    msg.style.filter = 'alpha(opacity=0)';
    msg.style.opacity = 0;
    msg.alpha = 0;
  } else {
    msg = document.getElementById('msg');
    msgcontent = document.getElementById('msgcontent');
  }
  msgcontent.innerHTML = string;
  msg.style.display = 'block';
  var msgheight = msg.offsetHeight;
  var targetdiv = document.getElementById(target);
  targetdiv.focus();
  var targetheight = targetdiv.offsetHeight;
  var targetwidth = targetdiv.offsetWidth;
  var topposition = topPosition(targetdiv) - ((msgheight - targetheight) / 2);
  var leftposition = leftPosition(targetdiv) + targetwidth + MSGOFFSET;
  msg.style.top = topposition + 'px';
  msg.style.left = leftposition + 'px';
  clearInterval(msg.timer);
  msg.timer = setInterval("fadeMsg(1)", MSGTIMER);
  if(!autohide) {
    autohide = MSGHIDE;  
  }
  window.setTimeout("hideMsg()", (autohide * 1000));
}

// hide the form alert //
function hideMsg(msg) {
  var msg = document.getElementById('msg');
  if(!msg.timer) {
    msg.timer = setInterval("fadeMsg(0)", MSGTIMER);
  }
}

// face the message box //
function fadeMsg(flag) {
  if(flag == null) {
    flag = 1;
  }
  var msg = document.getElementById('msg');
  var value;
  if(flag == 1) {
    value = msg.alpha + MSGSPEED;
  } else {
    value = msg.alpha - MSGSPEED;
  }
  msg.alpha = value;
  msg.style.opacity = (value / 100);
  msg.style.filter = 'alpha(opacity=' + value + ')';
  if(value >= 99) {
    clearInterval(msg.timer);
    msg.timer = null;
  } else if(value <= 1) {
    msg.style.display = "none";
    clearInterval(msg.timer);
  }
}

// calculate the position of the element in relation to the left of the browser //
function leftPosition(target) {
  var left = 0;
  if(target.offsetParent) {
    while(1) {
      left += target.offsetLeft;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.x) {
    left += target.x;
  }
  return left;
}

// calculate the position of the element in relation to the top of the browser window //
function topPosition(target) {
  var top = 0;
  if(target.offsetParent) {
    while(1) {
      top += target.offsetTop;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.y) {
    top += target.y;
  }
  return top;
}

// preload the arrow //
if(document.images) {
  arrow = new Image(7,80); 
  arrow.src = "img/msg_arrow.gif"; 
}