// JavaScript Document

function showdiv(a)
{
	if (a > 4)
	{
		for(i=1;i<=4;i++)
		{
			document.getElementById('td' + i +'').className = "topnav";
			document.getElementById('div' + i +'').style.display="none";	
		}
		
		for(i=5;i<=8;i++)
		{
			if(i==a)
			{
				document.getElementById('div' + i +'').style.display="block";
			}
			else
			{
				document.getElementById('div' + i +'').style.display="none";
			}			
	
		}
	}
	else
	{
		for(i=1;i<=4;i++)
		{
			if(i==a)
			{
				document.getElementById('td' + i +'').className = "topnavOn";
				document.getElementById('div' + i +'').style.display="block";
			}
			else
			{
				document.getElementById('td' + i +'').className = "topnav";
				document.getElementById('div' + i +'').style.display="none";
			}			
	
		}
		
		for(i=5;i<=8;i++)
		{
			document.getElementById('div' + i +'').style.display="none";	
		}
	}
}

function containsdigit(param)
{
	mystrLen=param.length;
	for(i=0;i<mystrLen;i++)
	{
		if((param.charAt(i)=="0") || (param.charAt(i)=="1") || (param.charAt(i)=="2") || (param.charAt(i)=="3") || (param.charAt(i)=="4") || (param.charAt(i)=="5") || (param.charAt(i)=="6") || (param.charAt(i)=="7") || (param.charAt(i)=="8") || (param.charAt(i)=="9"))
		{
			return true;
		}
	}
	return false;
}

function containscharacters(param)
{
	mystrLen=param.length;
	flag=false;
	for(i=0;i<mystrLen;i++)
	{
		if(((param.charAt(i)>="A") && (param.charAt(i)<="Z")) || ((param.charAt(i)>="a") && (param.charAt(i)<="z")) || ((param.charAt(i)==".")||(param.charAt(i)==" ")))
		{
			flag=true;
		}
	else 
		return false
	}
	return flag
}

function formcheck()
{
	if(isWhitespace(document.form1.fname.value) || isEmpty(document.form1.fname.value))
		{
			alert("Please Enter Full Name");
			document.form1.fname.focus();
			return false;
		}
	else if(containsdigit(document.form1.fname.value)==true)
		{
			alert("Please Enter Alphabets Only");
			document.form1.fname.select();
			return false
		}
	else if(containscharacters(document.form1.fname.value)==false)
		{
			alert("Please Enter Alphabets Only");
			document.form1.fname.select();
			return false
		}
	else if(isWhitespace(document.form1.mobile.value) || isEmpty(document.form1.mobile.value))
		{
			alert("Please Enter Mobile Number (Do not prefix 0 or +91)");
			document.form1.mobile.focus();
			return false;
		}
	else if(isNaN(document.form1.mobile.value))
			{
				alert("Please Enter Numbers Only");
				document.form1.mobile.select();
				return false
			}
	else if((document.form1.mobile.value.substr(0,1)!=9)||(document.form1.mobile.value.length !=10))
			{
				alert("Please Enter a Valid Mobile Number");
				document.form1.mobile.select();
				return false
			}
	else if (isWhitespace(document.form1.email.value) || isEmpty(document.form1.email.value))
		{
			alert("Please Enter Your Email Address");
			document.form1.email.focus();
			return false;
		}
	else if (isEmail(document.form1.email.value) != true)
		{
			alert("Please Enter Your Valid Email Address");
			document.form1.email.select();
			return false;
		}
		
	return true;
}