// JavaScript Document
function validateSearchForm ( form ) {

	for ( var e = 0; e < form.elements.length; e ++ ) {
		var el = form.elements [ e ];
		
	  	if ( ( el.type == 'text' || el.type == 'textarea' || el.type.substr( 0, 6 ) == 'select'  ) && el.value != '' ) {
			if ( el.type == 'text' ) {
				if ( el.value.length > 2 ) {
					return true;
				}
			}
			else {
	  			return true;
			}
		}  
	}

	alert( 'Vul een of meer zoekcriteria in.' );

	return false;
}