westdc-zf1/htdocs/js/navi.js

function extractPageName(hrefString)
	{
	        var arr = hrefString.split('/');
	        var result=(arr.length<3) ? hrefString : arr[3].toLowerCase();
	        if (result=='water' || result=='heihe' || result=='glacier' || result=='yrnmr' || result=='hiwater') result='data';
	        if (result=='admin' && arr.length>=4) result+="/"+arr[4];
	        return result;  	                      
	}
	
	function setActiveMenu(arr, crtPage)
	{
	        for (var i=0; i<arr.length; i++)
	        {
	                if(extractPageName(arr[i].href) == crtPage)
	                {
	                        if (arr[i].parentNode.tagName != "DIV")
	                        {
	                                arr[i].className = "active";
	                                arr[i].parentNode.className = "active";
	                        }
	                }
	        }
	}
	
	function setPage()
	{
	        hrefString = document.location.href ? document.location.href : document.location;
	
	        if (document.getElementById("mainmenu")!=null)
	                setActiveMenu(document.getElementById("mainmenu").getElementsByTagName("a"), extractPageName(hrefString));
	}