js获取url参数的使用扩展实例_javascript技巧

<script> <BR>//js获取url参数的function<BR>function request(paras){ <BR>var url = location.href; <BR>var paraString = url.substring(url.indexOf("?")+1,url.length).split("&"); <BR>var paraObj = {} <BR>for (i=0; j=paraString[i]; i++){ <BR>paraObj[j.substring(0,j.indexOf("=")).toLowerCase()] = j.substring(j.indexOf <BR>("=")+1,j.length); <BR>} <BR>var returnValue = paraObj[paras.toLowerCase()]; <BR>if(typeof(returnValue)=="undefined"){ <BR>return ""; <BR>}else{ <BR>return returnValue; <BR>} <BR>} <BR>var theurl <BR>theurl=request("url"); <BR>if (theurl!=''){ <BR>location=theurl <BR>} <BR></script>