var contact_div_height = 190;
var contact_div_ticker;

function contact_show() {
	document.getElementById('contact').className = 'visible';
	document.getElementById('contact_content').style.height = 0;
	clearInterval(contact_div_ticker);
	contact_div_ticker = setInterval('contact_scroll()', 30);
}
function contact_hide() {
	clearInterval(contact_div_ticker);
	contact_div_ticker = setInterval('contact_unscroll()', 30);
}
function contact_scroll() {
	var curh = document.getElementById('contact_content').style.height.replace('px', '');
	curh = parseInt(curh) + 30;
	if (curh >= contact_div_height) {
		clearInterval(contact_div_ticker);
		document.getElementById('contact_content').style.height = contact_div_height+'px';
	} else {
		document.getElementById('contact_content').style.height = curh+'px';
	}
}
function contact_unscroll() {
	var curh = document.getElementById('contact_content').style.height.replace('px', '');
	curh = parseInt(curh) - 30;
	if (curh <= 0) {
		clearInterval(contact_div_ticker);
		document.getElementById('contact_content').style.height = '0px';
		document.getElementById('contact').className = '';
	} else {
		document.getElementById('contact_content').style.height = curh+'px';
	}
}