var testOn= new Image();
var testOff = new Image();
var sampleOn= new Image();
var sampleOff = new Image();
var logoutOn= new Image();
var logoutOff = new Image();
var shareOn= new Image();
var shareOff = new Image();
var trainingOn= new Image();
var trainingOff = new Image();

function setPicky(imageName, image, imagePath)
{
	if (image.src == '')
	{
		image.src = imagePath;
	}
	document.images[imageName].src = image.src;
}

function winPop(pageToLoad, winName, width, height, center, scroll)
{
    xposition=0; yposition=0;
    if ((parseInt(navigator.appVersion) >= 4 ) && (center)){
        xposition = (screen.width - width) / 2;
        yposition = (screen.height - height) / 2;
    }
    args = "width=" + width + ","
    + "height=" + height + ","
    + "location=0,"
    + "menubar=0,"
    + "resizable=0,"
    + "scrollbars="+scroll+", "
    + "status=0,"
    + "titlebar=0,"
    + "toolbar=0,"
    + "hotkeys=0,"
    + "screenx=" + xposition + ","  //NN Only
    + "screeny=" + yposition + ","  //NN Only
    + "left=" + xposition + ","     //IE Only
    + "top=" + yposition;           //IE Only

    window.open(pageToLoad,winName,args );
}

function checkOther()
{
	if(document.getElementById('MC_hear').value=='Other')
	{
		if(document.getElementById('otherBox').style.display='')
		{
			document.getElementById('otherBox').style.display='none'
		}
	}
	else
	{
		document.getElementById('otherBox').style.display='none'
	}
}

function validateSignUp()
{
	var bValid;
	bValid = true;

	if (document.forms['signup'].MC_title.value=='')
	{
		alert('You must enter a Title.');
		bValid = false;
	}

	if ((bValid) && (document.forms['signup'].MC_firstname.value==''))
	{
		alert('You must enter a First Name.');
		bValid = false;
	}

	if ((bValid) && (document.forms['signup'].MC_surname.value==''))
	{
		alert('You must enter a Surname.');
		bValid = false;
	}

	if ((bValid) && (document.forms['signup'].address.value==''))
	{
		alert('Please enter a Street Address.');
		bValid = false;
	}

	if ((bValid) && (document.forms['signup'].postcode.value==''))
	{
		alert('You must enter a Post Code.');
		bValid = false;
	}

	if ((bValid) && (document.forms['signup'].tel.value==''))
	{
		alert('Please enter a Telephone Number.');
		bValid = false;
	}

	if ((bValid) && (document.forms['signup'].email.value==''))
	{
		alert('Please enter an Email address.');
		bValid = false;
	}

	if ((bValid) && (document.forms['signup'].MC_hear.value=='0'))
	{
		alert('Please enter Where did you hear about Trendwatch?.');
		bValid = false;
	}
	
	if ((bValid) && (document.forms['signup'].otherInfo.value=='') && (document.getElementById('otherBox').style.display==''))
	{
		alert('Please enter Where did you hear about Trendwatch?.');
		bValid = false;
	}	

	if ((bValid) && (document.forms['signup'].MC_username1.value==''))
	{
		alert('Please enter a Username.');
		bValid = false;
	}
	
	if ((bValid) && (!document.getElementById('emailprefPost').checked) && (!document.getElementById('emailprefEmail').checked))
	{
		alert('Please select in which format you would like to recieve Trendwatch.');
		bValid = false;
	}	

	if ((bValid) && (document.forms['signup'].MC_trendwatch.checked == false))
	{
		alert('Please make a Subscription Choice.');
		bValid = false;
	}

	return bValid;
}

function validateWeeklySignUp()
{
	var bValid;
	bValid = true;

	if (document.forms['weeklysignup'].MC_title.value=='')
	{
		alert('You must enter a Title.');
		bValid = false;
	}

	if ((bValid) && (document.forms['weeklysignup'].MC_firstname.value==''))
	{
		alert('You must enter a First Name.');
		bValid = false;
	}

	if ((bValid) && (document.forms['weeklysignup'].MC_surname.value==''))
	{
		alert('You must enter a Surname.');
		bValid = false;
	}

	if ((bValid) && (document.forms['weeklysignup'].address.value==''))
	{
		alert('Please enter a Street Address.');
		bValid = false;
	}

	if ((bValid) && (document.forms['weeklysignup'].postcode.value==''))
	{
		alert('You must enter a Post Code.');
		bValid = false;
	}

	if ((bValid) && (document.forms['weeklysignup'].tel.value==''))
	{
		alert('Please enter a Telephone Number.');
		bValid = false;
	}

	if ((bValid) && (document.forms['weeklysignup'].email.value==''))
	{
		alert('Please enter an Email address.');
		bValid = false;
	}

	//if ((bValid) && (document.forms['weeklysignup'].MC_hear.value==''))
	//{
	//	alert('Please enter Where did you hear about Trendwatch?.');
	//	bValid = false;
	//}

	return bValid;
}