<SCRIPT LANGUAGE="JavaScript"> <!-- Begin function blinkit(){ intrvl=0; for(nTimes=0;nTimes<3;nTimes++){ intrvl += 200; setTimeout("document.bgColor='#0000FF';",intrvl); intrvl += 200; setTimeout("document.bgColor='#FFFFFF';",intrvl); } } // End --> </SCRIPT>

<FORM> <INPUT TYPE="BUTTON" VALUE="เปลี่ยนสีพื้นหลัง" onClick="blinkit()"> </FORM>