截取url字符串中的指定长度字符

Code:

/* 截取url字符串中的指定长度字符 strurl is url string, len is a number eg. alert(strurlsub("http://XXXXXXXX/XXXXX/sdf中文sdfsdf.rar",7)); */ function strurlsub(strurl,len){ var a,strname; a = strurl.lastIndexOf("/"); strname = strurl.substring(a+1,strurl.length); if(strname.length<=len){ return strname; }else{ return strname.substring(0,len)+"..."; } }