var invalidateField = function(field)
{
	$(field).css({'background-color' : '#FFEFEF'});
	parentField = $(field).parent();
	siblings = $(field).siblings();

	siblings.each(function(i ,sibling)
	{
		if ($(sibling).attr("class") == "tickBox")
		{
			$(sibling).css({"visibility" : "visible"})
			$(sibling).attr("src" , "/images/no.jpg");
		} 
	})	
}

var validFormField = function(field)
{
	if($(field).attr("value").length > 0)
	{
		$(field).css({'background-color' : '#DFFFE9'});
		$("#"+$(field).attr("name")+"ERR").css({"visibility" : "hidden"}); 
	}

	else
	{
		$(field).css({'background-color' : '#FFFFFF'});
	}
	
	siblings = $(field).siblings();

	siblings.each(function(i ,sibling)
	{
		if ($(sibling).attr("class") == "tickBox")
		{
			if($(field).attr("value").length > 0)
			{
				$(sibling).css({"visibility" : "visible"})
				$(sibling).attr("src" , "/images/yes.jpg");
			}
			else
			{
				$(sibling).css({"visibility" : "hidden"})	
				$(sibling).attr("src" , "/images/yes.jpg");	
			}
		} 
	})
}

function checkEmail(value) {
	var filter = /^([a-zA-Z0-9])+([\.a-zA-Z0-9_-])*@([a-zA-Z0-9])+(\.[a-zA-Z0-9_-]+)+$/;
	if (!filter.test(value)) 
	{
		return false;
	}
	else
	{
		return true;
	}
}