function directype_preview(directype_url, motive, textfield_id) {
	var text = document.getElementById('product_option'+textfield_id).value ;
	var url = directype_url ;

    var motive2 = '' ;
    for (k1 in motives) {
    	for (k in motives[k1]) {
			var elem = document.getElementById(k) ;
			if (elem) {
				switch (elem.type) {
					case 'radio' :
					case 'checkbox' :
						if (elem.checked) {
							motive2 += '_'+motives[k1][k] ;
						}
					break ;

					default :
						if (elem.value) {
							motive2 += '_'+elem.value ;
					}
					break ;
				}
			}
		}
    }

    if (motive2) {
		motive = motive2.substring(1) ;
    }

	url += '?motiv='+encodeURIComponent(motive+'.dtm')  ;

    var field_cnt = 0 ;
    var url_tmp = '' ;
	for (k in dt_fields) {
		url_tmp += '&'+k+'='+encodeURIComponent(document.getElementById('product_option'+dt_fields[k]).value) ;
		field_cnt++ ;
	}
    if (field_cnt > 1) {
		url += url_tmp ;
    }
    else {
		url += '&text='+encodeURIComponent(text) ;
	}

//	url += '&error=1' ;
//	url += '&type=jpg' ;
//	url += '&height=150' ;
	url += '&width=600' ;
//	alert(url) ;

	$.fn.colorbox({href:url,photo:true,open:true});
}