如何在打开网页时创建闪烁背景

要在打开网页时创建闪烁背景，请将以下JavaScript添加到网页正文中。
【如何在打开网页时创建闪烁背景】<script> function initArray() { this.length = initArray.arguments.length for (var i = 0; i < this.length; i++) this[i+1] = initArray.arguments[i] } var hexChars = " 0123456789ABCDEF”；函数 Dec2Hex (Dec) { var a = Dec % 16; var b = (Dec - a)/16; hex = "" + hexChars.charAt(b) + hexChars.charAt(a); 返回十六进制；}函数 bgChanger (开始、结束、步骤) {步骤 = 步骤 -1 ; redA = begin.charAt(0) + begin.charAt(1); red_valA = parseInt(redA,'16'); redB = end.charAt(0) + end.charAt(1); red_valB = parseInt(redB,'16'); red_int = ((red_valB - red_valA) / 步骤) * -1; grnA = begin.charAt(2) + 开始。grn_valA = parseInt(grnA,'16'); grnB = end.charAt(2) + end.charAt(3); grn_valB = parseInt(grnB,'16'); grn_int = ((grn_valB - grn_valA) / 步骤) * -1; bluA = begin.charAt(4) + begin.charAt(5); blu_valA = parseInt(bluA,'16'); bluB = end.charAt(4) + end.charAt(5); blu_valB = parseInt(bluB,'16'); blu_int = ((blu_valB - blu_valA) / 步骤) * -1; 步骤=2；红色 = red_valA; grn = grn_valA; 蓝色=蓝色_valA; document.bgColor = 开始；while ( 步骤 >= 步骤 ) { red -= red_int; red_round = Math.round(红色); red_hex = Dec2Hex(红色); grn -= grn_int；grn_round = Math.round(grn); grn_hex = Dec2Hex(grn);蓝色 -= blu_int; blu_round = Math.round(blu); blu_hex = Dec2Hex(blu); document.bgColor = red_hex + grn_hex + blu_hex; // document.write("<br>bgcolor = " + red_hex + grn_hex + blu_hex); 步骤++；}文档.bgColor = 结束; } </script> <script>  </脚本>