function emailvalidation(entered, alertbox)
{
	with (entered)
	{
		apos=value.indexOf("@");
		dotpos=value.lastIndexOf(".");
		lastpos=value.length-1;
		if (apos<1 || dotpos-apos<2 || lastpos-dotpos>3 || lastpos-dotpos<2) 
		{if (alertbox) {alert(alertbox);} return false;}
		else {return true;}
	}
}

function valuevalidation(entered, min, max, alertbox, datatype)
{
	with (entered)
	{
		checkvalue=parseFloat(value);
		if (datatype)
			  {smalldatatype=datatype.toLowerCase();
				     if (smalldatatype.charAt(0)=="i") {checkvalue=parseInt(value)};
				       }
		if ((parseFloat(min)==min && checkvalue<min) || (parseFloat(max)==max && checkvalue>max) || value!=checkvalue)
		{if (alertbox!="") {alert(alertbox);} return false;}
		else {return true;}
	}
}

function digitvalidation(entered, min, max, alertbox, datatype)
{
	with (entered)
	{
		checkvalue=parseFloat(value);
		if (datatype)
			  {smalldatatype=datatype.toLowerCase();
				     if (smalldatatype.charAt(0)=="i") {checkvalue=parseInt(value); if (value.indexOf(".")!=-1) {checkvalue=checkvalue+1}};
				       }
		if ((parseFloat(min)==min && value.length<min) || (parseFloat(max)==max && value.length>max) || value!=checkvalue)
		{if (alertbox!="") {alert(alertbox);} return false;}
		else {return true;}
	}
}

function emptyvalidation(entered, alertbox)
{
	with (entered)
	{
		if (value==null || value=="")
		{if (alertbox!="") {alert(alertbox);} return false;}
		else {return true;}
	}
}

function formvalidation(thisform)
{
	with (thisform)
	{
		if (emptyvalidation(name,"Don't forget to tell us your name!")==false) {name.focus(); return false;};
		if (emailvalidation(email,"Invalid or Illegal E-mail Address")==false) {email.focus(); return false;};
		if (emptyvalidation(comments,"It sure would be nice if you were going to leave us a comment!")==false) {comments.focus(); return false;};
		if (emptyvalidation(country,"Where are you from?")==false) {country.focus(); return false;};

	}
}
