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 && 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);	}