// JavaScript Document
function isBlank(str)
{
	if(str.length==0)
		return true;
	else
	   	return false;
}

function checkus_name()
{
	if(isBlank(document.form1.us_name.value))
	{
		alert("Please Specify Your UserName!");
		return false;
	}
	else
		return true;
}

function checkemail()
{
	if(isBlank(document.form1.email.value))
	{
		alert("Please Specify Your Email ID!");
		return false;
	}
	else
		return true;
}

function emailvalidation(str)
{
	// E-mail Validation by Henrik Petersen / NetKontoret
	// Explained at www.echoecho.com/jsforms.htm
	// Please do not remove this line and the two lines above.
	value = str;
	apos=value.indexOf("@"); 
	dotpos=value.lastIndexOf(".");
	lastpos=value.length-1;
	if (apos<1 || dotpos-apos<2 || lastpos-dotpos>3 || lastpos-dotpos<2) 
	{
		alert("Email entered is in wrong format");
		return false;
	}
	else 
	{
		return true;
	}
}

function checkmonth()
{
	if(document.form1.month.value == "")
	{
		alert("Please Specify Month!");
		return false;
	}
	else
		return true;
}

function checkday()
{
	if(document.form1.day.value == "")
	{
		alert("Please Specify Day!");
		return false;
	}
	else
		return true;
}

function checkyear()
{
	if(document.form1.year.value == "")
	{
		alert("Please Specify Year!");
		return false;
	}
	else
		return true;
}

function checkcountry()
{
	if(document.form1.country.value == "")
	{
		alert("Please Specify Country");
		return false;
	}
	else
		return true;
}

function checkcity_state()
{
	if(document.form1.city_state.value == "")
	{
		alert("Please Specify State");
		return false;
	}
	else
		return true;
}

function checkcity()
{
	if(isBlank(document.form1.city.value))
	{
		alert("Please Specify Your City!");
		return false;
	}
	else
		return true;
}

function checkzipcode()
{
	if(isBlank(document.form1.zipcode.value))
	{
		alert("Please Specify Your ZipCode!");
		return false;
	}
	else
		return true;
}

function func1()
{
	if (checkemail()==false) 
	{	
		document.form1.email.focus(); 
		return false;
	}
	if (emailvalidation(document.form1.email.value)==false)
	{
		document.form1.email.focus(); 
		return false;
	}
}