function ChkEmail(mail)
{
		var str=mail;
				
		if (!str=="")
		{
			if (str.indexOf("@",1) == -1)
			{
				alert("That is not a valid Email address. Please enter again.");
				return false;
			}
			if (str.indexOf("@",1)== 0)
			{
				alert("That is not a valid Email address. Please enter again.");
				return false;
			}
			if (str.indexOf(".")== 0)
			{
				alert("That is not a valid Email address. Please enter again.");
				return false;
			}
			if (str.indexOf(".",1) == -1)
			{
				alert("That is not a valid Email address. Please enter again.");
				return false;
			}
		
			// extra validation
			var posat=str.indexOf("@");
			var posdot=str.indexOf(".");
			var rposdot=str.lastIndexOf(".");
			if(rposdot==posdot)
			if((posdot < posat) || (posdot-posat < 3))
			{
				alert("That is not a valid Email address. Please enter again.");
				return false;
			}
			if(str.charAt(str.length-1)==".")
			{
				alert("That is not a valid Email address. Please enter again.");
				return false;
			}
			if(str.charAt(str.length-1)=="@")
			{
				alert("That is not a valid Email address. Please enter again.");
				return false;
			}
			var j=0;
			for( var i=0;i<str.length;i++)
			{
				if(str.charAt(i) == "@")
				j++;
			}
			if(j > 1)
			{
			alert("That is not a valid Email address. Please enter again.");
			return false;
			}
		}
		return true;
}
function priceint(str)
{
	if (str=="")
	{
		return true;
	}
	var i;
	for (i=0;i<str.length;i++)
	{
		if((str.charAt(i)<"0")||(str.charAt(i)>"9"))
		{
			return false;
		}
		return true;
	}
}
function alphabet(str)
{
	
		var iChars = "!@#$%^&*()+=-[]\\\';,./{}|\":<>?1234567890";
		flag=false;
		strInvalid="";
		for (var i = 0; i < str.length; i++) 
		{
			if (iChars.indexOf(str.charAt(i)) != -1)
			{
				strInvalid+=str.charAt(i) + " ";
				flag=true;
			}
			
		}
		if(flag) 
		{
			return false;
		}
}
function trim(str) 
{ 
    return str.replace(/^\s+|\s+$/g,''); 
} 
function val_register()
{
		//alert("aaa");
		if(trim(document.frmadd.txtEmail.value)=="")
		{
			alert("Please Enter E-mail Address");
			document.frmadd.txtEmail.focus();
			return false;
		}
		if(!ChkEmail(trim(document.frmadd.txtEmail.value)))
		{
			document.frmadd.txtEmail.focus();
			document.frmadd.txtEmail.value="";
			return false;
		}
		if(trim(document.frmadd.txtCEmail.value)=="")
		{
			alert("Please Enter Confirm E-mail Address");
			document.frmadd.txtCEmail.focus();
			document.frmadd.txtCEmail.value="";
			return false;
		}
		if(!ChkEmail(trim(document.frmadd.txtCEmail.value)))
		{
			document.frmadd.txtCEmail.focus();
			document.frmadd.txtCEmail.value="";
			return false;
		}
		if(trim(document.frmadd.txtEmail.value)!=trim(document.frmadd.txtCEmail.value))
		{
			alert("Please Confirm Your E-mail Address");
			document.frmadd.txtCEmail.focus();
			return false;
		}
		if(trim(document.frmadd.txtPassword.value)=="")
		{
			alert("Please Enter Password");
			document.frmadd.txtPassword.focus();
			return false;
		}
		if(trim(document.frmadd.txtCPassword.value)=="")
		{
			alert("Please Enter Confirm Password");
			document.frmadd.txtCPassword.focus();
			return false;
		}
		if(trim(document.frmadd.txtPassword.value)!=trim(document.frmadd.txtCPassword.value))
		{
			alert("Please Confirm Your Password");
			document.frmadd.txtCPassword.focus();
			return false;
		}
		if(trim(document.frmadd.txtFName.value)=="")
		{
			alert("Please Enter First Name");
			document.frmadd.txtFName.focus();
			return false;
		}
		if(alphabet(document.frmadd.txtFName.value)=="")
		{
			alert("First Name Only Allows Alphabets");
			document.frmadd.txtFName.value="";
			document.frmadd.txtFName.focus();
			return false;
		}
		if(trim(document.frmadd.txtLName.value)=="")
		{
			alert("Please Enter Last Name");
			document.frmadd.txtLName.focus();
			return false;
		}
		if(alphabet(document.frmadd.txtLName.value)=="")
		{
			alert("Last Name Only Allows Alphabets");
			document.frmadd.txtLName.value="";
			document.frmadd.txtLName.focus();
			return false;
		}

		return true;
	}