function fun(){
	var frm=document.form1;
	if(frm.txt_username.value==""){
		alert("Please Insert User Name.");
		frm.txt_username.focus();
		return false;
	}else if(frm.txt_password.value==""){
		alert("Please Insert Password.");
		frm.txt_password.focus();
		return false;
	}else if(frm.txt_password.value.length<6){
		alert("Please Insert Password atleast 6 character long.");
		frm.txt_password.focus();
		return false;
	}else if(frm.txt_password2.value==""){
		alert("Please Insert RE.Password.");
		frm.txt_password2.focus();
		return false;
	}else if(frm.txt_password.value!=frm.txt_password2.value){
		alert("Your Password Don't Match.");
		frm.txt_password.focus();
		return false;
	}else if(frm.txt_email.value==""){
		alert("Please Insert Email Address.");
		frm.txt_email.focus();
		return false;
	}else if(!validate(frm.txt_email.value)){		
			frm.txt_email.focus();
			return false; 
	}else if(!frm.txt_host.value!=""){
		alert("Please Insert Your Site Name.");
		frm.txt_host.focus();
		return false;
	}/*else if(frm.txt_lname.value==""){
		alert("Please Insert Last Name.");
		frm.txt_lname.focus();
		return false;
	}else if(frm.txt_age.value==""){
		alert("Please Insert Age.");
		frm.txt_age.focus();
		return false;
	}*/else{
		return true;
		}
	
}//end of fun function
function validate(id){
	var val=id;
	if(	val.lastIndexOf('@')==-1 || val.lastIndexOf('@')==0 || val.lastIndexOf('@')==val.length-1 || val.lastIndexOf('.')==-1){
		alert("Please enter a valid email address.\n Otherwise You will not receive mail from us.");
		return false;
	}
	return true;
}

function checkNumber()    // to validte the digits
{
	//alert(event.keyCode);
	
	if((event.keyCode<=57 && event.keyCode>=48)|| event.keyCode==45)
	return true;
	return false;
	
	if(event.keycode>57 || event.keysode<48) 
	return false;
	return true;
}