function ValidateData(FirstName,Email, Subject,Comment,contactDate)
{
    //if (!contactDate && contactDate.value != "")
    //{						
	    //return (false);
    //}
	
    if ((FirstName.value == "") || (FirstName.value == FirstName.defaultValue))
    {
	    alert('Please, enter your first name.');
	    FirstName.focus();
	    return (false);
    }
	
   
    if ((Email.value == "") || (Email.value == Email.defaultValue))
    {
	    alert('Please, enter your email.');
	    Email.focus();
	    return (false);
    }
    else
    {
	    if(!ValidateEmail(Email.value))
	    {
		    alert("Please check the emails address.");
		    Email.focus();
		    return false;
	    }
    }
    
     if ((Subject.value == "") || (Subject.value == Subject.defaultValue))
    {
	    alert('Please, enter your subject.');
	    Subject.focus();
	    return (false);
    }
	
		
    if ((Comment.value == "") || (Comment.value ==Comment.defaultValue ))
    {
	    alert('Please, enter your message.');
	    Comment.focus();
	    return (false);
    }
	
    return true;
}

function OnSubmit(){
	
	debugger;
    var FirstName=document.getElementById('contact_name');		    
    var Email=document.getElementById('contact_email');	
    var Subject=document.getElementById('contact_subject');		    
    var Comment=document.getElementById('contact_text');		    
    var contactDate;
    //var contactDate=document.getElementById('contactDate');
    
	return ValidateData(FirstName,Email,Subject, Comment, contactDate);
}

function CustomValidateEmail(source, arguments)
{
    if(arguments)
    {
        var Email = getElementContact(source.controltovalidate);
        if (Email.value == "")
	    {
		    source.errormessage = 'Please, enter your Email.';
		    Email.focus();
		    arguments.IsValid=false;
		    return;
	    }
	    else
	    {
	        if(!ValidateEmail(Email.value))
		    {
			    source.errormessage = "Please, check your Email.";
			    Email.focus();
			    arguments.IsValid=false;
			    return;
		    }
	    }
        arguments.IsValid=true;
    
    }    
}

function ValidateEmail(valor) 
{
    if (/\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/.test(valor))
	    return true;
    else
	    return false;
}

function CustomValidateComments(source, arguments)
{
    var Comment = getElementContact(source.controltovalidate);
    if (Comment.value == "")
	{
		source.errormessage = 'Please, enter your Comments.';
		Comment.focus();
		arguments.IsValid=false;
		return;
	}		
    arguments.IsValid=true;
}

function getElementContact(name)
{
    var object = null;
    var tbSmallContact=document.getElementById('tbContact'); 
    for (var i=0; i<tbSmallContact.rows.length; i++)
    {
        for (var j=0; j<tbSmallContact.rows[i].cells.length; j++)
        {
            for (var k=0; k<tbSmallContact.rows[i].cells[j].childNodes.length; k++)
            {                
                if(tbSmallContact.rows[i].cells[j].childNodes[k].id == name)
                {
                   object = tbSmallContact.rows[i].cells[j].childNodes[k];
                   return object;
                }
            }
        }
    }    
}

function OnlyNumbers(e)
{	
	if (((document.all)?e.keyCode:e.which) < 48 ||((document.all)?e.keyCode:e.which) > 57)
	{
		if (e.keyCode)
		{
			e.keyCode = 0;
		}
		else
		{
			e.preventDefault();
			e.stopPropagation();
		}
	}
}