function chk_register()
{
	var cond=true;
	if (document.form.TextFirstName.value.length==0){
		alert("Please enter First Name.");
		if(cond==true){
			document.form.TextFirstName.value="";
			document.form.TextFirstName.focus();
		}
		cond=false;
		return false;
	}
	if (document.form.TextLastName.value.length==0){
		alert("Please enter Last Name.");
		if(cond==true){
			document.form.TextLastName.value="";
			document.form.TextLastName.focus();
		}
		cond=false;
		return false;
	}
	if (document.form.sltcourse.value=="sel"){
		alert("Please Select Course ");
		if(cond==true){
			document.form.sltcourse.value="";
			document.form.sltcourse.focus();
		}
		cond=false;
		return false;
	}
	if (document.form.TextWorkPhone.value.length==0 || isNaN(document.form.TextWorkPhone.value)){
		alert("Please enter Proper Work Phone.");
		if(cond==true){
			document.form.TextWorkPhone.value="";
			document.form.TextWorkPhone.focus();
		}
		cond=false;
		return false;
	}
	if (document.form.TextEmail.value.length==0){
		alert("Please enter E-mail address.");
		if(cond==true){
			document.form.TextEmail.value="";
			document.form.TextEmail.focus();
		}
		cond=false;
		return false;
	}
	else if(!checkMail(document.form.TextEmail.value)){
		alert("Email must contain an E-mail address.");
		if(cond==true){
			document.form.TextEmail.value="";
			document.form.TextEmail.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;
	}
}