// JavaScript Document
function validate(){
	var st=document.contact.email.value;
			
	if(document.contact.name.value== "")
	{
	alert("Please enter your Name");
	document.contact.name.focus();
	document.contact.name.select();
	return false;
	}
	
	//Code for Email!!!
	if(document.contact.email.value=="")
	{
		alert("Please enter your Email");
		document.contact.email.focus();
		document.contact.email.select();
		return false;
	}
	else
	{			
		if(checkEmail(st)!=true)
		{
			alert("Invalid E-Mail  \n"+st);
			document.contact.email.focus();
			document.contact.email.select();
			return false; 
		 }
	}
	
	//Code for comment.
	if(document.contact.comments.value== "")
	{
	alert("Please enter your Comments");
	document.contact.comments.focus();
	document.contact.comments.select();
	return false;
	}
}

function checkEmail(str)
{
	if((str.indexOf("@")==-1))
	{
		fstr="Please Enter @ or .";
		return false;
	}
	else
	{
	if((str.indexOf("@") == 0) )
	{
		fstr="@  Cannot Be first";
		alert(fstr);
		return false;
	}
	if((str.indexOf("@") == (str.length-1)))
	{
		fstr="@ Cannot Be Last";
		return false;
	}

	
	if((str.indexOf("@")+1) == str.indexOf("."))
	{
		fstr="@. IS Invalid Email";
		return false;
	}
	}
	var cp=0;					
	if(cp==2)
	{
		fstr="@ cannnot be repeated";
		return false;
	}
	return true;
}