var contactFormCaptions={name:null,phone:null,email:null};

function contactFormOnBlur(elem)
{
	switch(elem.name)
	{
		case 'name':
		case 'phone':
		case 'email':
			if(elem.value.length==0 && contactFormCaptions[elem.name]!==null)
			{
				elem.value=contactFormCaptions[elem.name];
				contactFormCaptions[elem.name]=null;
			};
			break;
	};
};
function contactFormOnFocus(elem)
{
	switch(elem.name)
	{
		case 'name':
		case 'phone':
		case 'email':
			if(elem.value.length>0 && contactFormCaptions[elem.name]===null)
			{
				contactFormCaptions[elem.name]=elem.value;
				elem.value='';
			};
			break;
	};
};