function getPagina(action, divId, offset, curPage) {

    var url = "./ajax/ajax.php?action="+action+"&offset="+offset+"&curPage="+curPage ;

    var ajaxObj = new ClassAJAX();
    ajaxObj.setMethod("POST") ;
    ajaxObj.setExecute(false) ;
    ajaxObj.setLoading(false) ;
    ajaxObj.setReturn(true) ;

    ajaxObj.runAJAX(url) ;

    var html = "" ;
    var htmlOld = "" ;
    myInterval = window.setInterval(
    function() {

    	htmlOld = html ;
        html = ajaxObj.getHtml() ;

        if (html != false) {

            if (htmlOld == html) {

        	    window.clearInterval(myInterval);

                document.getElementById(divId).innerHTML = html ;


            }

        }
    }
    ,1);

}

function sendComment() {
	
	var url = "./ajax/ajax.asp?action=sendComment" ;
	var formname = "formCommento" ;
	
	var msg = "" ;
	msg = checkValidation(formname, eval("document."+formname+".email.value")) ;
	if (eval("document."+formname+".nomeCognome.value") == "") {
		msg += "Manca il nome\n" ;
	}
	
	if (eval("document."+formname+".commento.value") == "") {
		msg += "Manca il commento\n" ;
	}
	
	if (msg) {
		alert(msg) ;
	}
	else {
	
		for (i=0; i < eval("document."+formname+".length;"); i++) {
		
			switch (eval("document."+formname+"[i].type")) {
							
				case "select-one" :
					url += "&" + eval("document."+formname+"[i].name ;") + "=" + eval("document."+formname+"[i].options[document."+formname+"[i].selectedIndex].value ;") ;
				break ;
				
				case "checkbox" :
			
					try {
						if (eval("document."+formname+"[i].checked") && eval("document."+formname+".center.value") == 'calendario') {
							url += "&" + eval("document."+formname+"[i].name ;") + "=" + eval("document."+formname+"[i].value") ;
						}
						else if (eval("document."+formname+"[i].checked")) {
							url += "&" + eval("document."+formname+"[i].name ;") + "=1" ;
						}
						else {
							url += "&" + eval("document."+formname+"[i].name ;") + "=0" ;
						}
					}
					catch(e) {
						if (eval("document."+formname+"[i].checked")) {
							url += "&" + eval("document."+formname+"[i].name ;") + "=1" ;
						}
						else {
							url += "&" + eval("document."+formname+"[i].name ;") + "=0" ;
						}
					}
					
				break ;
					
				default :
					url += "&" + eval("document."+formname+"[i].name ;") + "=" + encodeURIComponent(eval("document."+formname+"[i].value ;")) ;
				break ;
			}
		}
		
		var ajaxObj = new ClassAJAX();
	    ajaxObj.setMethod("GET") ;
	    ajaxObj.setExecute(false) ;
	    ajaxObj.setLoading(false) ;
	    ajaxObj.setReturn(true) ;
	
	    ajaxObj.runAJAX(url) ;
	
	    var html = "" ;
	    var htmlOld = "" ;
	    myInterval = window.setInterval(
	    function() {
	
	    	htmlOld = html ;
	        html = ajaxObj.getHtml() ;
	
	        if (html != false) {
	
	            if (htmlOld == html) {
	
	        	    window.clearInterval(myInterval);
					
					alert(html) ;
					
	        	    if (html == "ok") {
		            	document.getElementById('outputCommentOk').style.display = '' ;
		            	document.getElementById('outputCommentKo').style.display = 'none' ;
		            	eval("document."+formname+".reset();") ;
	        	    }
					else {
						document.getElementById('outputCommentKo').style.display = '' ;
		            	document.getElementById('outputCommentOk').style.display = 'none' ;
					}
	            }
	
	        }
	    }
	    ,1);
	    
	}
	
}


function checkValidation(formInput, valoreEmail) {

    var message = "" ;

    if (stringEmpty(valoreEmail)) {
        message += "Manca l'email\n";
    } else if (noAtSign( valoreEmail)) {
        message += "Indirizzo email non valido\n";
    } else if (nothingBeforeAt( valoreEmail)) {
        message += "Indirizzo email non valido\n";
    } else if (noLeftBracket(valoreEmail)) {
        message += "Indirizzo email non valido\n";
    } else if (noRightBracket(valoreEmail)) {
        message += "Indirizzo email non valido\n";
    } else if (noValidPeriod(valoreEmail)) {
        message += "Indirizzo email non valido\n";
    } else if (noValidSuffix(valoreEmail)) {
       message += "Indirizzo email non valido\n";
    } 

    return message ;
}

function stringEmpty (valoreEmail) {
    // CHECK THAT THE STRING IS NOT EMPTY
    if ( valoreEmail.length < 1 ) {
        return ( true );
    } else {
        return ( false );
    }
}

function noAtSign (valoreEmail) {
    // CHECK THAT THERE IS AN '@' CHARACTER IN THE STRING
    if (valoreEmail.indexOf ('@', 0) == -1) {
        return ( true )
    } else {
        return ( false );
    }
}

function nothingBeforeAt (valoreEmail) {
    // CHECK THERE IS AT LEAST ONE CHARACTER BEFORE THE '@' CHARACTER
    if ( valoreEmail.indexOf ( '@', 0 ) < 1 ) {
        return ( true )
    } else {
        return ( false );
    }
}

function noLeftBracket (valoreEmail) {
    // IF EMAIL ADDRESS IN FORM 'user@[255,255,255,0]', THEN CHECK FOR LEFT BRACKET
    if ( valoreEmail.indexOf ( '[', 0 ) == -1 && valoreEmail.charAt (valoreEmail.length - 1) == ']') {
        return ( true )
    } else {
        return ( false );
    }
}

function noRightBracket (valoreEmail) {
    // IF EMAIL ADDRESS IN FORM 'user@[255,255,255,0]', THEN CHECK FOR RIGHT BRACKET
    if (valoreEmail.indexOf ( '[', 0 ) > -1 && valoreEmail.charAt (valoreEmail.length - 1) != ']') {
        return ( true );
    } else {
        return ( false );
    }
}

function noValidPeriod (valoreEmail) {
    // IF EMAIL ADDRESS IN FORM 'user@[255,255,255,0]', THEN WE ARE NOT INTERESTED
    if (valoreEmail.indexOf ( '@', 0 ) > 1 && valoreEmail.charAt (valoreEmail.length - 1 ) == ']')
        return ( false );

    // CHECK THAT THERE IS AT LEAST ONE PERIOD IN THE STRING
    if (valoreEmail.indexOf ( '.', 0 ) == -1)
        return ( true );

    return ( false );
}

function noValidSuffix(valoreEmail) {
    // IF EMAIL ADDRESS IN FORM 'user@[255,255,255,0]', THEN WE ARE NOT INTERESTED
    if (valoreEmail.indexOf('@', 0) > 1 && valoreEmail.charAt(valoreEmail.length - 1) == ']') {
        return ( false );
    }

    // CHECK THAT THERE IS A TWO OR THREE CHARACTER SUFFIX AFTER THE LAST PERIOD
    var len = valoreEmail.length;
    var pos = valoreEmail.lastIndexOf ( '.', len - 1 ) + 1;
    if ( ( len - pos ) < 2 || ( len - pos ) > 4 ) {
        return ( true );
    } else {
        return ( false );
    }
}