function cleanPlate( fieldName ){
        var elem = document.getElementById( fieldName );
//        var field = elem.value;
        elem.value = filterNum( elem.value );
//        while( field.indexOf( "-" ) != -1 ){
//           field = field.replace("-", "");
//        }
//        while( field.indexOf( " " ) != -1 ){
//            field = field.replace(" ", "");
//        }
//        elem.value = field;
    }
    function filterNum(str) {
          re = /\$|,|@|#|~|`|\%|\*|\^|\&|\(|\)|\+|\=|\[|\-|\_|\]|\[|\}|\{|\;|\:|\'|\"|\<|\>|\?|\s|\||\\|\!|\$|\./g;
          // remove special characters like "$" and "," etc...
          return str.replace(re, "");
     }
    
        var newwindow;
    function poptastic(url,name)
    {
	    newwindow=window.open(url,name,'height=480,width=640');
	    if (window.focus) {newwindow.focus()}
    }