<form> <center> <script language="Javascript"> <!-- // please keep these lines on when you copy the source // made by: Nicolas - http://www.javascript-page.com var current = 0; function initArray() { this.length = initArray.arguments.length; for (var i = 0; i < this.length; i++) { this[i] = initArray.arguments[i]; } } var picz = new initArray( "0.gif", "1.gif", "2.gif", "3.gif", "4.gif", "5.gif", "6.gif", "7.gif", "8.gif", "9.gif" ); document.write('<img name="jscriptimg" src="'+picz[0]+'">'); function checkIt(val) { var goodnum = current+val; if (goodnum < 0) alert("You can't go any further back!"); else if (goodnum > picz.length-1) alert("You can't go any further forward!"); else document.jscriptimg.src = picz[goodnum]; current = goodnum; } //--> </script> <br><input type="button" value="Back" onclick="checkIt(-1)"> <input type="button" value="Forward" onclick="checkIt(1)"> </center> </form>