function checkall()
{	
if( document.sam.fname.value=="")
{alert("Please fill in your name")
document.sam.fname.focus();
return false
}
if(document.sam.phone_no.value=="")
{
	alert("Please fill in your Phone No.")
	document.sam.phone_no.focus();
	return false
}
else
{
	inputStr = document.sam.phone_no.value
	var value = inputStr ;
	var pattern = /^[0-9\(\)\s-\\\/]+$/ ;
	var result = '' ;
	result = pattern.exec(value) ;
	if (value == "")
	{
		value = null ;
	}
	if(result == null)
	{
		alert ("Sorry, Please do not use any alphabets for Phone");
		document.sam.phone_no.focus();
		return false;
	}
	}
if (document.sam.email.value=="")
{
alert("Enter your E-mail.")
document.sam.email.focus();
return false
}
t=document.sam.email.value;
p=t.indexOf("@");
d=t.indexOf(".");
if(p<1||d<1)
{
	alert ("invalid E-mail I.D");
	document.sam.email.focus();
	return false
}
}