function getCookie(cookieName) 

	{

		var cookieString=""+document.cookie;



		var index1=cookieString.indexOf(cookieName + '=');

		

		if (index1==-1 || cookieName=="") 

			return ""; 

		var index2=cookieString.indexOf(';',index1);



		if (index2==-1) 

			index2=cookieString.length; 



		return unescape(cookieString.substring(index1+cookieName.length+1,index2));

	}



	function setCookie(name, value) 

	{

		cookieString = name + "=" + escape(value) + ";EXPIRES=-1";

		document.cookie=cookieString;



		if (getCookie(name))

			return false;

		else

			return true;

	}



	function showPdf()

	{

		document.getElementById('PDFGen').value = 1;

		document.getElementById('CalcForm').target = '_blank';

		document.getElementById('CalcForm').submit();

		document.getElementById('CalcForm').target = '';

		document.getElementById('PDFGen').value = 0;

	}



	function sendPdfOnOff(isSetManually)

	{

		pdfEmailCtrl        = document.getElementById('PDFEmail');

		pdfEmailToCtrl      = document.getElementById('PDFEmailTo');

		pdfEmailNameCtrl    = document.getElementById('PDFEmailName');

		pdfEmailPhoneCtrl   = document.getElementById('PDFEmailPhone');

		

		pdfEmailToCtrl.disabled = !pdfEmailCtrl.checked;

		pdfEmailNameCtrl.disabled = !pdfEmailCtrl.checked;

		pdfEmailPhoneCtrl.disabled = !pdfEmailCtrl.checked;

		if (pdfEmailCtrl.checked)
		{
			document.getElementById("btn_calculate").value="Send to Email";
		}
		else
		{
			document.getElementById("btn_calculate").value="Calculate";
		}
		
		if (pdfEmailCtrl.checked && isSetManually)

			pdfEmailToCtrl.focus();

	}

	

	function saveFormChanges()

	{

		pdfEmailCtrl      = document.getElementById('PDFEmail');

		pdfEmailToCtrl      = document.getElementById('PDFEmailTo');

		pdfEmailNameCtrl    = document.getElementById('PDFEmailName');

		pdfEmailPhoneCtrl   = document.getElementById('PDFEmailPhone');

		

		if (pdfEmailToCtrl != null)

		{

			setCookie('pdfEmail', pdfEmailCtrl.checked);

			setCookie('pdfEmailTo', pdfEmailToCtrl.value);

			setCookie('pdfEmailName', pdfEmailNameCtrl.value);

			setCookie('pdfEmailPhone', pdfEmailPhoneCtrl.value);



			/*if (pdfEmailNameCtrl.value.length == 0)

			{

				alert('Your name must not be empty');

				pdfEmailNameCtrl.focus();

				

				return false;

			}*/

			

			if (pdfEmailCtrl.checked == true && pdfEmailToCtrl.value.length == 0)

			{

				alert('E-mail address must not be empty');

				pdfEmailToCtrl.focus();

				

				return false;

			}

		

			/*if (pdfEmailPhoneCtrl.value.length == 0)

			{

				alert('Phone number must not be empty');

				pdfEmailPhoneCtrl.focus();

				

				return;

			}*/

		

			document.getElementById('PDFEmail').value = 1;

			document.getElementById('CalcForm').submit();

			document.getElementById('CalcForm').target = '';

			document.getElementById('PDFEmail').value = 0;

		}

	}

	

	function setEmailOptions()

	{

		pdfEmailCtrl        = document.getElementById('PDFEmail');

		pdfEmailToCtrl      = document.getElementById('PDFEmailTo');

		pdfEmailNameCtrl    = document.getElementById('PDFEmailName');

		pdfEmailPhoneCtrl   = document.getElementById('PDFEmailPhone');

		

		if (pdfEmailCtrl != null)

			pdfEmailCtrl.checked = (getCookie('pdfEmail') == 'true') ? 1 : 0;

		

		if (pdfEmailToCtrl != null)

			pdfEmailToCtrl.value = getCookie('pdfEmailTo');



		if (pdfEmailPhoneCtrl != null)

			pdfEmailPhoneCtrl.value = getCookie('pdfEmailPhone');

			

		if (pdfEmailNameCtrl != null)

			pdfEmailNameCtrl.value = getCookie('pdfEmailName');

			

		sendPdfOnOff(false);			

	}

	

	function switchToPlainEnglish()

	{

		var analysisDiv = document.getElementById('analysisDiv');

		var englishDiv = document.getElementById('plainEnglishDiv');



		analysisDiv.style.display = 'none';

		englishDiv.style.display = 'inline';



		setCookie('CalcHelp', 2);

	}



	function switchToAnalysis()

	{

		var analysisDiv = document.getElementById('analysisDiv');

		var englishDiv = document.getElementById('plainEnglishDiv');



		analysisDiv.style.display = 'inline';

		englishDiv.style.display = 'none';



		setCookie('CalcHelp', 1);

	}