1094:   trim: function( text ) {
1095:     return (text || "").replace( /^\s+|\s+$/g, "" );
1096:   },
1097: 

1098:   makeArray: function( array ) {
1099:     var ret = [];
1100: 
1101:     // Need to use typeof to fight Safari childNodes crashes
1102:     if ( typeof array != "array" )
1103:       for ( var i = 0, length = array.length; i < length; i++ )
1104:         ret.push( array[ i ] );
1105:     else
1106:       ret = array.slice( 0 );
1107: 
1108:     return ret;
1109:   },
1110: 

1111:   inArray: function( elem, array ) {
1112:     for ( var i = 0, length = array.length; i < length; i++ )
1113:       if ( array[ i ] == elem )
1114:         return i;
1115: 
1116:     return -1;
1117:   },
1118: 

1119:   merge: function( first, second ) {
1120:     // We have to loop this way because IE & Opera overwrite the length
1121:     // expando of getElementsByTagName
1122: 
1123:     // Also, we need to make sure that the correct elements are being returned
1124:     // (IE returns comment nodes in a '*' query)
1125:     if ( jQuery.browser.msie ) {
1126:       for ( var i = 0; second[ i ]; i++ )
1127:         if ( second[ i ].nodeType != 8 )
1128:           first.push( second[ i ] );
1129: 
1130:     } else
1131:       for ( var i = 0; second[ i ]; i++ )
1132:         first.push( second[ i ] );
1133: 
1134:     return first;
1135:   },
1136: 

1137:   unique: function( array ) {
1138:     var ret = [], done = {};
1139: 
1140:     try {
1141: 
1142:       for ( var i = 0, length = array.length; i < length; i++ ) {
1143:         var id = jQuery.data( array[ i ] );
1144: 
1145:         if ( !done[ id ] ) {
1146:           done[ id ] = true;
1147:           ret.push( array[ i ] );
1148:         }
1149:       }
1150: 
1151:     } catch( e ) {
1152:       ret = array;
1153:     }
1154: 
1155:     return ret;
1156:   },
1157: 

1158:   grep: function( elems, callback, inv ) {
1159:     // If a string is passed in for the function, make a function
1160:     // for it (a handy shortcut)
1161:     if ( typeof callback == "string" )
1162:       callback = eval("false||function(a,i){return " + callback + "}");
1163: 
1164:     var ret = [];
1165: 
1166:     // Go through the array, only saving the items
1167:     // that pass the validator function
1168:     for ( var i = 0, length = elems.length; i < length; i++ )
1169:       if ( !inv && callback( elems[ i ], i ) || inv && !callback( elems[ i ], i ) )
1170:         ret.push( elems[ i ] );
1171: 
1172:     return ret;
1173:   },
1174: