获取当前地址,JS获取当前URL：
<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>
<SCRIPT> 
thisURL = document.URL; 
thisHREF = document.location.href; 
thisSLoc = self.location.href; 
thisDLoc = document.location; 
strwrite = "<tr><td valign=top>thisURL: </td><td>[" + thisURL + "]</td></tr>" 
strwrite += "<tr><td valign=top>thisHREF: </td><td>[" + thisHREF + "]</td></tr>" 
strwrite += "<tr><td valign=top>thisSLoc: </td><td>[" + thisSLoc + "]</td></tr>" 
strwrite += "<tr><td valign=top>thisDLoc: </td><td>[" + thisDLoc + "]</td></tr>" 
document.write( strwrite ); 
</SCRIPT>
thisDLoc = document.location; <BR>thisURL = document.URL; <BR>thisHREF = document.location.href; <BR>thisSLoc = self.location.href;<BR>
<SCRIPT> 
thisTLoc = top.location.href; 
thisPLoc = parent.document.location; 
thisTHost = top.location.hostname; 
thisHost = location.hostname; 
strwrite = "<tr><td valign=top>thisTLoc: </td><td>[" + thisTLoc + "]</td></tr>" 
strwrite += "<tr><td valign=top>thisPLoc: </td><td>[" + thisPLoc + "]</td></tr>" 
strwrite += "<tr><td valign=top>thisTHost: </td><td>[" + thisTHost + "]</td></tr>" 
strwrite += "<tr><td valign=top>thisHost: </td><td>[" + thisHost + "]</td></tr>" 
document.write( strwrite ); 
</SCRIPT>
thisTLoc = top.location.href; <BR>thisPLoc = parent.document.location; <BR>thisTHost = top.location.hostname; <BR>thisHost = location.hostname;<BR>下面这个函数我看了，是可以获取当前URL的文件名的
<SCRIPT> 
tmpHPage = thisHREF.split( "/" ); 
thisHPage = tmpHPage[ tmpHPage.length-1 ]; 
tmpUPage = thisURL.split( "/" ); 
thisUPage = tmpUPage[ tmpUPage.length-1 ]; 
strwrite = "<tr><td valign=top>thisHPage: </td><td>[" + thisHPage + "]</td></tr>" 
strwrite += "<tr><td valign=top>thisUPage: </td><td>[" + thisUPage + "]</td></tr>" 
document.write( strwrite ); 
</SCRIPT>

<TBODY>
<TR>
<TD></TR></TBODY></TABLE>