NetScape 4.7 !!! document.layers.tb应该考虑Ns6,ns7的兼容性 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 先判断浏览器类型,然后用if(ie)...if(ns)...蓝进行处理 if(document.layers) var o=document.layers("tb").rows;if(document.all) var o=document.all("tb").rows;alert(o.length);还是不行呀,在ns6下alert不出来:( NS6不支持if(document.layers)要全部浏览器支持:需要判断:iens4ns6三种类型 <SCRIPT LANGUAGE="Javascript">ar HM_DOM = (document.getElementById) ? true : false;var NS4 = (document.layers) ? true : false;var HM_IE = (document.all) ? true : false;var IE4 = HM_IE && !HM_DOM;var isIE6 = (navigator.userAgent.indexOf("MSIE 6") > 0) ? 1 : 0;var isIE5 = (navigator.userAgent.indexOf("MSIE 5.5") > 0) ? 1 : 0;var isNS6 = (navigator.userAgent.indexOf("Gecko") > 0) ? 1 : 0;</script> <script LANGUAGE="JavaScript"> var agt=navigator.userAgent.toLowerCase(); var appVer = navigator.appVersion.toLowerCase(); var is_minor = parseFloat(appVer); var is_major = parseInt(is_minor); var iePos = appVer.indexOf('msie'); if (iePos !=-1) { is_minor = parseFloat(appVer.substring(iePos+5,appVer.indexOf(';',iePos))) is_major = parseInt(is_minor); } var nav6Pos = agt.indexOf('netscape6'); if (nav6Pos !=-1) { is_minor = parseFloat(agt.substring(nav6Pos+10)) is_major = parseInt(is_minor) } var nav7Pos = agt.indexOf('netscape/7'); if (nav7Pos !=-1) { is_minor = parseFloat(agt.substring(nav7Pos+9)) is_major = parseInt(is_minor) } var is_getElementById = (document.getElementById) ? "true" : "false"; var is_getElementsByTagName = (document.getElementsByTagName) ? "true" : "false"; var is_documentElement = (document.documentElement) ? "true" : "false"; var is_moz = ((agt.indexOf('mozilla/5')!=-1) && (agt.indexOf('spoofer')==-1) && (agt.indexOf('compatible')==-1) && (agt.indexOf('opera')==-1) && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1) && (agt.indexOf('gecko/')!=-1)); var is_gver = 0; var is_moz_ver = 1; if (is_moz) { var is_gver = agt.indexOf('gecko/'); var is_gver = parseInt(agt.substring(is_gver+6)); var is_moz_ver = agt.indexOf('rv:'); var is_moz_ver = agt.substring(is_moz_ver+3); var is_paren = is_moz_ver.indexOf(')'); var is_moz_ver = is_moz_ver.substring(0,is_paren); is_minor = parseFloat(is_moz_ver) is_major = parseInt(is_moz_ver) } var is_opera = (agt.indexOf("opera") != -1); var is_opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1); var is_opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1); var is_opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1); var is_opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1); var is_opera6 = (agt.indexOf("opera 6") != -1 || agt.indexOf("opera/6") != -1); var is_opera5up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4); var is_opera6up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4 && !is_opera5); var is_nav = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1) && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1) && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1) && (!(is_moz))); var is_nav2 = (is_nav && (is_major == 2)); var is_nav3 = (is_nav && (is_major == 3)); var is_nav4 = (is_nav && (is_major == 4)); var is_nav4up = (is_nav && is_minor >= 4); var is_navonly = (is_nav && ((agt.indexOf(";nav") != -1) || (agt.indexOf("; nav") != -1)) ); var is_nav6 = (is_nav && is_major==6); var is_nav6up = (is_nav && is_minor >= 6) var is_nav5 = (is_nav && is_major == 5 && !is_nav6); var is_nav5up = (is_nav && is_minor >= 5); var is_nav7 = (is_nav && is_major == 7); var is_nav7up = (is_nav && is_minor >= 7); var is_ie = ((iePos!=-1) && (!is_opera)); var is_ie3 = (is_ie && (is_major < 4)); var is_ie4 = (is_ie && is_major == 4); var is_ie4up = (is_ie && is_minor >= 4); var is_ie5 = (is_ie && is_major == 5); var is_ie5up = (is_ie && is_minor >= 5); var is_ie5_5 = (is_ie && (agt.indexOf("msie 5.5") !=-1)); var is_ie5_5up =(is_ie && is_minor >= 5.5); var is_ie6 = (is_ie && is_major == 6); var is_ie6up = (is_ie && is_minor >= 6); var is_aol = (agt.indexOf("aol") != -1); var is_aol3 = (is_aol && is_ie3); var is_aol4 = (is_aol && is_ie4); var is_aol5 = (agt.indexOf("aol 5") != -1); var is_aol6 = (agt.indexOf("aol 6") != -1); var is_aol7 = ((agt.indexOf("aol 7")!=-1) || (agt.indexOf("aol7")!=-1)); var is_webtv = (agt.indexOf("webtv") != -1); var is_TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1)); var is_AOLTV = is_TVNavigator; var is_hotjava = (agt.indexOf("hotjava") != -1); var is_hotjava3 = (is_hotjava && (is_major == 3)); var is_hotjava3up = (is_hotjava && (is_major >= 3)); var is_js; if (is_nav2 || is_ie3) is_js = 1.0; else if (is_nav3) is_js = 1.1; else if (is_opera5up) is_js = 1.3; else if (is_opera) is_js = 1.1; else if ((is_nav4 && (is_minor <= 4.05)) || is_ie4) is_js = 1.2; else if ((is_nav4 && (is_minor > 4.05)) || is_ie5) is_js = 1.3; else if (is_nav5 && !(is_nav6)) is_js = 1.4; else if (is_hotjava3up) is_js = 1.4; else if (is_nav6up) is_js = 1.5; else if (is_nav && (is_major > 5)) is_js = 1.4; else if (is_ie && (is_major > 5)) is_js = 1.3; else if (is_moz) is_js = 1.5; else is_js = 0.0; if ((agt.indexOf("mac")!=-1) && is_ie5up) is_js = 1.4; var is_win = ( (agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) ); var is_win95 = ((agt.indexOf("win95")!=-1) || (agt.indexOf("windows 95")!=-1)); var is_win16 = ((agt.indexOf("win16")!=-1) || (agt.indexOf("16bit")!=-1) || (agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("windows 16-bit")!=-1) ); var is_win31 = ((agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("win16")!=-1) || (agt.indexOf("windows 16-bit")!=-1)); var is_winme = ((agt.indexOf("win 9x 4.90")!=-1)); var is_win2k = ((agt.indexOf("windows nt 5.0")!=-1) || (agt.indexOf("windows 2000")!=-1)); var is_winxp = ((agt.indexOf("windows nt 5.1")!=-1) || (agt.indexOf("windows xp")!=-1)); var is_win98 = ((agt.indexOf("win98")!=-1) || (agt.indexOf("windows 98")!=-1)); var is_winnt = ((agt.indexOf("winnt")!=-1) || (agt.indexOf("windows nt")!=-1)); var is_win32 = (is_win95 || is_winnt || is_win98 || ((is_major >= 4) && (navigator.platform == "Win32")) || (agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1)); var is_os2 = ((agt.indexOf("os/2")!=-1) || (navigator.appVersion.indexOf("OS/2")!=-1) || (agt.indexOf("ibm-webexplorer")!=-1)); var is_mac = (agt.indexOf("mac")!=-1); var is_mac68k = (is_mac && ((agt.indexOf("68k")!=-1) || (agt.indexOf("68000")!=-1))); var is_macppc = (is_mac && ((agt.indexOf("ppc")!=-1) || (agt.indexOf("powerpc")!=-1))); var is_all = (document.all) ? "true":"false"; document.cookie = "cookies=true"; var is_cookie = (document.cookie) ? "true" : "false"; var is_images = (document.images) ? "true":"false"; var is_layers = (document.layers) ? "true":"false"; var is_forms = (document.forms) ? "true" : "false"; var is_links = (document.links) ? "true" : "false"; var is_frames = (window.frames) ? "true" : "false"; var is_screen = (window.screen) ? "true" : "false"; var is_java = (navigator.javaEnabled());</script> 谢谢 net_lover(孟子E章) ! 求一段正则式 模式对话框怎么用? 帮我看看这个函数,只有1行代码,关于层的 js如何禁止刷新 如何同时提交多个被选中radio控件值?? 急救 怎么实现多级下拉列表?急 一程序上的小问题 谁对CSS滤镜的Light滤镜比较熟悉啊?请进来看看。198 我想对文本框a1,a2,a3,a4,做个判断(在提交的时候),使得不是a1=a2+a3a+a4的时候,弹出提示框!送分! document.designMode是什么意思? 在页面中使用快捷键触发事件
var o=document.layers("tb").rows;
if(document.all)
var o=document.all("tb").rows;alert(o.length);还是不行呀,在ns6下alert不出来:(
ie
ns4
ns6
三种类型
ar HM_DOM = (document.getElementById) ? true : false;
var NS4 = (document.layers) ? true : false;
var HM_IE = (document.all) ? true : false;
var IE4 = HM_IE && !HM_DOM;
var isIE6 = (navigator.userAgent.indexOf("MSIE 6") > 0) ? 1 : 0;
var isIE5 = (navigator.userAgent.indexOf("MSIE 5.5") > 0) ? 1 : 0;
var isNS6 = (navigator.userAgent.indexOf("Gecko") > 0) ? 1 : 0;
</script>
var agt=navigator.userAgent.toLowerCase();
var appVer = navigator.appVersion.toLowerCase();
var is_minor = parseFloat(appVer);
var is_major = parseInt(is_minor);
var iePos = appVer.indexOf('msie');
if (iePos !=-1) {
is_minor = parseFloat(appVer.substring(iePos+5,appVer.indexOf(';',iePos)))
is_major = parseInt(is_minor);
}
var nav6Pos = agt.indexOf('netscape6');
if (nav6Pos !=-1) {
is_minor = parseFloat(agt.substring(nav6Pos+10))
is_major = parseInt(is_minor)
}
var nav7Pos = agt.indexOf('netscape/7');
if (nav7Pos !=-1) {
is_minor = parseFloat(agt.substring(nav7Pos+9))
is_major = parseInt(is_minor)
} var is_getElementById = (document.getElementById) ? "true" : "false";
var is_getElementsByTagName = (document.getElementsByTagName) ? "true" : "false";
var is_documentElement = (document.documentElement) ? "true" : "false"; var is_moz = ((agt.indexOf('mozilla/5')!=-1) && (agt.indexOf('spoofer')==-1) &&
(agt.indexOf('compatible')==-1) && (agt.indexOf('opera')==-1) &&
(agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1) &&
(agt.indexOf('gecko/')!=-1));
var is_gver = 0;
var is_moz_ver = 1;
if (is_moz) {
var is_gver = agt.indexOf('gecko/');
var is_gver = parseInt(agt.substring(is_gver+6));
var is_moz_ver = agt.indexOf('rv:');
var is_moz_ver = agt.substring(is_moz_ver+3);
var is_paren = is_moz_ver.indexOf(')');
var is_moz_ver = is_moz_ver.substring(0,is_paren);
is_minor = parseFloat(is_moz_ver)
is_major = parseInt(is_moz_ver)
} var is_opera = (agt.indexOf("opera") != -1);
var is_opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
var is_opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1);
var is_opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1);
var is_opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1);
var is_opera6 = (agt.indexOf("opera 6") != -1 || agt.indexOf("opera/6") != -1);
var is_opera5up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4);
var is_opera6up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4 && !is_opera5); var is_nav = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
&& (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
&& (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1)
&& (!(is_moz)));
var is_nav2 = (is_nav && (is_major == 2));
var is_nav3 = (is_nav && (is_major == 3));
var is_nav4 = (is_nav && (is_major == 4));
var is_nav4up = (is_nav && is_minor >= 4);
var is_navonly = (is_nav && ((agt.indexOf(";nav") != -1) ||
(agt.indexOf("; nav") != -1)) ); var is_nav6 = (is_nav && is_major==6);
var is_nav6up = (is_nav && is_minor >= 6) var is_nav5 = (is_nav && is_major == 5 && !is_nav6);
var is_nav5up = (is_nav && is_minor >= 5); var is_nav7 = (is_nav && is_major == 7);
var is_nav7up = (is_nav && is_minor >= 7); var is_ie = ((iePos!=-1) && (!is_opera));
var is_ie3 = (is_ie && (is_major < 4)); var is_ie4 = (is_ie && is_major == 4);
var is_ie4up = (is_ie && is_minor >= 4);
var is_ie5 = (is_ie && is_major == 5);
var is_ie5up = (is_ie && is_minor >= 5);
var is_ie5_5 = (is_ie && (agt.indexOf("msie 5.5") !=-1));
var is_ie5_5up =(is_ie && is_minor >= 5.5);
var is_ie6 = (is_ie && is_major == 6);
var is_ie6up = (is_ie && is_minor >= 6); var is_aol = (agt.indexOf("aol") != -1);
var is_aol3 = (is_aol && is_ie3);
var is_aol4 = (is_aol && is_ie4);
var is_aol5 = (agt.indexOf("aol 5") != -1);
var is_aol6 = (agt.indexOf("aol 6") != -1);
var is_aol7 = ((agt.indexOf("aol 7")!=-1) || (agt.indexOf("aol7")!=-1)); var is_webtv = (agt.indexOf("webtv") != -1);
var is_TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1));
var is_AOLTV = is_TVNavigator; var is_hotjava = (agt.indexOf("hotjava") != -1);
var is_hotjava3 = (is_hotjava && (is_major == 3));
var is_hotjava3up = (is_hotjava && (is_major >= 3)); var is_js;
if (is_nav2 || is_ie3) is_js = 1.0;
else if (is_nav3) is_js = 1.1;
else if (is_opera5up) is_js = 1.3;
else if (is_opera) is_js = 1.1;
else if ((is_nav4 && (is_minor <= 4.05)) || is_ie4) is_js = 1.2;
else if ((is_nav4 && (is_minor > 4.05)) || is_ie5) is_js = 1.3;
else if (is_nav5 && !(is_nav6)) is_js = 1.4;
else if (is_hotjava3up) is_js = 1.4;
else if (is_nav6up) is_js = 1.5;
else if (is_nav && (is_major > 5)) is_js = 1.4;
else if (is_ie && (is_major > 5)) is_js = 1.3;
else if (is_moz) is_js = 1.5;
else is_js = 0.0;
if ((agt.indexOf("mac")!=-1) && is_ie5up) is_js = 1.4;
var is_win = ( (agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) );
var is_win95 = ((agt.indexOf("win95")!=-1) || (agt.indexOf("windows 95")!=-1));
var is_win16 = ((agt.indexOf("win16")!=-1) ||
(agt.indexOf("16bit")!=-1) || (agt.indexOf("windows 3.1")!=-1) ||
(agt.indexOf("windows 16-bit")!=-1) ); var is_win31 = ((agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("win16")!=-1) ||
(agt.indexOf("windows 16-bit")!=-1));
var is_winme = ((agt.indexOf("win 9x 4.90")!=-1));
var is_win2k = ((agt.indexOf("windows nt 5.0")!=-1) || (agt.indexOf("windows 2000")!=-1));
var is_winxp = ((agt.indexOf("windows nt 5.1")!=-1) || (agt.indexOf("windows xp")!=-1));
var is_win98 = ((agt.indexOf("win98")!=-1) || (agt.indexOf("windows 98")!=-1));
var is_winnt = ((agt.indexOf("winnt")!=-1) || (agt.indexOf("windows nt")!=-1));
var is_win32 = (is_win95 || is_winnt || is_win98 ||
((is_major >= 4) && (navigator.platform == "Win32")) ||
(agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1)); var is_os2 = ((agt.indexOf("os/2")!=-1) ||
(navigator.appVersion.indexOf("OS/2")!=-1) ||
(agt.indexOf("ibm-webexplorer")!=-1)); var is_mac = (agt.indexOf("mac")!=-1);
var is_mac68k = (is_mac && ((agt.indexOf("68k")!=-1) ||
(agt.indexOf("68000")!=-1)));
var is_macppc = (is_mac && ((agt.indexOf("ppc")!=-1) ||
(agt.indexOf("powerpc")!=-1)));
var is_all = (document.all) ? "true":"false";
document.cookie = "cookies=true";
var is_cookie = (document.cookie) ? "true" : "false";
var is_images = (document.images) ? "true":"false";
var is_layers = (document.layers) ? "true":"false";
var is_forms = (document.forms) ? "true" : "false";
var is_links = (document.links) ? "true" : "false";
var is_frames = (window.frames) ? "true" : "false";
var is_screen = (window.screen) ? "true" : "false";
var is_java = (navigator.javaEnabled());
</script>