转 js页面跳转常用的几种方式

 1 <!-- 第一种-->
 2 <script language="javascript" type="text/javascript"> 
 3 window.location.href="jb51.jsp?backurl="+window.location.href; 
 4 </script> 
 5 
 6 <!-- 第二种-->
 7 <script language="javascript"> 
 8 alert("返回"); 
 9 window.history.back(-1); 
10 </script> 
11 
12 <!-- 第三种-->
13 <script language="javascript"> 
14 window.navigate("jb51.jsp"); 
15 </script> 
16 
17 <!-- 第四种-->
18 <script language="JavaScript"> 
19 self.location=‘jb51.htm‘; 
20 </script> 
21 
22 <!-- 第五种-->
23 <script language="javascript"> 
24 alert("非法访问！"); 
25 top.location=‘jb51.jsp‘; 
26 </script> 
27 
28 <!-- 网址从传参获得并转向-->
29 <script language="javascript" type="text/javascript"> 
30 function request(paras){ 
31 var url = location.href; 
32 var paraString = url.substring(url.indexOf("?")+1,url.length).split("&"); 
33 var paraObj = {} 
34 for (i=0; j=paraString[i]; i++){ 
35 paraObj[j.substring(0,j.indexOf("=")).toLowerCase()] = j.substring(j.indexOf("=")+1,j.length); 
36 } 
37 var returnValue = paraObj[paras.toLowerCase()]; 
38 if(typeof(returnValue)=="undefined"){ 
39 return ""; 
40 }else{ 
41 return returnValue; 
42 } 
43 } 
44 var theurl 
45 theurl=request("url"); 
46 if (theurl!=‘‘){ 
47 location=theurl 
48 } 
49 </script>