function ValidateDataContact()
{
	var contactDate=document.getElementById('txtContactcontactDate');
	
	if (contactDate.value != "")
	{						
		return false;
	}
	return true;
}

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();
		}
	}
}

function VerifyCheckBox(checkBoxElement)
{
	if (checkBoxElement.checked)
	    checkBoxElement.value = 'true';
	else 
	    checkBoxElement.value = 'false';
}


function displayReferredDoctor(ddlreferred)
{
    
    try
    {
 	var element = document.getElementById("ReferredDoctor");
    if (!(ddlreferred.value == "Doctor"))
    {
        element.style.display = "none";
    }
    else
        element.style.display = "block";
    }
    catch(e)
    {}
}




function ValidateDataEvent(theForm)
{	
	//debugger;
	if (theForm.contactDate.value != "")
	{
		return false;
	}
	
	if (theForm.requiredfirstName.value == "")
	{
		alert('Please, enter your First Name.');
		theForm.requiredfirstName.focus();
		return false;
	}
	
	if (theForm.requiredlastName.value == "")
	{
		alert('Please, enter your Last Name.');
		theForm.requiredlastName.focus();
		return false;
	}
	
	
	
	if (theForm.requiredemail.value == "")
	{
		alert('Please, enter your email.');
		theForm.requiredemail.focus();
		return false;
	}
	else
	{
		if(!ValidateEmail(theForm.requiredemail.value))
		{
			alert("Please check the email address");
			theForm.requiredemail.focus();
			return false;
		}
	}
	
	if (theForm.requiredEventName.value == "" || theForm.requiredEventName.value == "-- Select --")
	{
		alert('Please, select a event.');
		theForm.requiredEventName.focus();
		return false;
	}
	
	return true;
}

function ValidateEmail(valor) 
{
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(valor))
		return true;
	else
		return false;
}