function autoFill(id, v){
	$(id).css({ color: "#b2adad" }).attr({ value: v }).focus(function(){
		if($(this).val()==v){
			$(this).val("").css({ color: "#333" });
		}
	}).blur(function(){
		if($(this).val()==""){
			$(this).css({ color: "#b2adad" }).val(v);
		}
	});

}


$(document).ready(function(){

	bgImageTotal=5;
	randomNumber = Math.round(Math.random()*(bgImageTotal-1))+1;
	imgPath=('index_files/'+randomNumber+'.jpg');
 	$('body').css('background-image', ('url("'+imgPath+'")'));
	
	autoFill($("#email"), "Your email address");
	
	$("#signform").validate({
	
		errorLabelContainer: $("#errors"),
		
		rules: {
			email: { required: true, email: true }
		},
		messages: {
			email: "Please enter a valid email address"
		}	
		
		
	
	});
	

});