jQuery实现锚点scoll效果

ie6、7、8，chrome、firefox、opera和safari测试通过。

以下是代码

 $('a[href*=#]').click(function() {
if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'')
&& location.hostname == this.hostname) {
var $target = $(this.hash);
$target = $target.length && $target
|| $('[name=' + this.hash.slice(1) +']');
if ($target.length) {
var targetOffset = $target.offset().top;
		var obj = document.documentElement; 
if (jQuery.browser.safari) 
obj = document.body
 if (jQuery.browser.msie) 
obj = 'html';
 $(obj).animate({scrollTop: targetOffset}, 1000);
		return false;
}
}
});