function chk_resources()
{
	var cond=true;
	if (document.form1.txtname.value.length==0){
		alert("Please Enter Name.");
		if(cond==true){
			document.form1.txtname.value="";
			document.form1.txtname.focus();
		}
		cond=false;
		return false;
	}
	if (document.form1.txtemail.value.length==0){
		alert("Please Enter E-mail address.");
		if(cond==true){
			document.form1.txtemail.value="";
			document.form1.txtemail.focus();
		}
		cond=false;
		return false;
	}
	else if(!checkMail(document.form1.txtemail.value)){
		alert("Email must contain an E-mail address.");
		if(cond==true){
			document.form1.txtemail.value="";
			document.form1.txtemail.focus();
		}
		cond=false;
		return false;
	}
	if (document.form1.txtalphabet.value.length==0){
		alert("Please enter First Letter of The English Alphabet.");
		if(cond==true){
			document.form1.txtalphabet.value="";
			document.form1.txtalphabet.focus();
		}
		cond=false;
		return false;
	}
	
	if (document.form1.txtmsg.value.length==0){
		alert("Please Enter Message.");
		if(cond==true){
			document.form1.txtmsg.value="";
			document.form1.txtmsg.focus();
		}
		cond=false;
		return false;
	}
}


function checkMail(email){
var x = email;
var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
if (filter.test(x)){
	return true;
	}
	else {
	  return false;
	}
}