function stripSpaces (str){ return str.replace( /\s/g, "" ); }

function checkLeftColumn () {
	var lb1 = document.getElementById('lb-1');
	var lb2 = document.getElementById('lb-2');
	var lblb = document.getElementById('lblb');
	var lbMain = document.getElementById('lb-main');
	var mbMain = document.getElementById('main-block');
	if (lb1 && lb2) {
		if (stripSpaces(lb1.innerHTML)=='') lb1.style.display='none';
		if (stripSpaces(lb2.innerHTML)=='') lb2.style.display='none';
		if (stripSpaces(lb1.innerHTML)=='' && stripSpaces(lb2.innerHTML)=='') {
			lbMain.style.display='none';
			mbMain.style.padding='0px 10px 0px 0px';
		}
	} else if (lblb) {
		if (stripSpaces(lblb.innerHTML)=='') {
			lbMain.style.display='none';
			mbMain.style.padding='0px 10px 0px 0px'
		}
	}
}


function togggleElement (elementId) {
	element = document.getElementById(elementId);
	element.style.display = (element.style.display=='none')?'block':'none';
	return false;
}

function getRadioGroupValue(radioGroupObj)
{
for (var i=0; i < radioGroupObj.length; i++)
if (radioGroupObj[i].checked) return radioGroupObj[i].value;

return null;
} 

function checkSearchForm (form) {
	if (form.q.value.length<3) {
		alert('Минимальная длина поля поиска - 3 символа');
		return false;
	} else return true;
}