function over( id ) {
	var i_s = $( id ).src.split('.');
	var f = i_s.length-2;
	var regex = /_ov$/;

	if( i_s[f].match( regex ) ) {
		i_s[f] = i_s[f].replace( regex, '' );
	} else {
		i_s[f] = i_s[f] + '_ov';
	}
	
	var n_i_s = i_s.join( '.' );
	
	try {
		$( id ).src = n_i_s;
	} catch( error ) {
		// Error
	}
}


var img_real_estate_companies_expanded = false;
var img_other_business_expanded = false;

function clickAndChange( url, url_expanded, img_id ) {

	if ( img_id ) {
		if ( img_id == 'img_real_estate_companies' ) {
		
			if ( img_real_estate_companies_expanded ) {
				$( img_id ).src = url;
				img_real_estate_companies_expanded = false;
			} else {
				$( img_id ).src = url_expanded;
				img_real_estate_companies_expanded = true;
			}
			
		} else if ( img_id == 'img_other_business' ) {
		
			if ( img_other_business_expanded ) {
				$( img_id ).src = url;
				img_other_business_expanded = false;
			} else {
				$( img_id ).src = url_expanded;
				img_other_business_expanded = true;
			}
			
		}
	}
}