//<![CDATA[



/*
	Copyright Robert Nyman, http://www.robertnyman.com
	Free to use if this text is included
*/
function $(strId){
	return document.getElementById(strId);
}
function getElementsByClassName(oElm, strTagName, strClassName){
	var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	strClassName = strClassName.replace(/\-/g, "\\-");
	var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
	var oElement;
	for(var i=0; i<arrElements.length; i++){
		oElement = arrElements[i];		
		if(oRegExp.test(oElement.className)){
			arrReturnElements.push(oElement);
		}	
	}
	return (arrReturnElements)
}
function addClassName(oElm, strClassName){
	var strCurrentClass = oElm.className;
	if(!new RegExp(strClassName, "i").test(strCurrentClass)){
		oElm.className = strCurrentClass + ((strCurrentClass.length > 0)? " " : "") + strClassName;
	}
}
function removeClassName(oElm, strClassName){
	var oClassToRemove = new RegExp((strClassName + "\s?"), "i");
	oElm.className = oElm.className.replace(oClassToRemove, "").replace(/^\s?|\s?$/g, "");
}
function $$(strId){
	return document.getElementsByTagName(strId);
}

function aMod_externalLink(){    
    var as,i,link;
    // grab all links, and loop over them
    as=document.getElementsByTagName('a');
    for(i=0;i<as.length;i++){
        var a =as[i];
        link=a.href; 
        var ext=link.split('.').pop();
        // and check if it contains the current location 
        var host = new String(window.location.hostname);
        rExp = /www./gi;
        domain = host.replace(rExp, "");

        if(link.indexOf(domain)==-1 && link.indexOf('javascript:')==-1){
            if(!a.getAttribute('title'))a.setAttribute('title',link);
            a.setAttribute("target","_blank"); 
            
            if(a.className!='')a.className+=' ext-link';
            else a.className='ext-link';                        
        } 
        if (ext=='pdf'){ 
        	a.className = 'pdf-link';
        	a.setAttribute("target","_blank"); 
        }else if (ext=='zip') a.className = 'zip-link';
        else if(ext=='mp3' ){
        	a.className = 'mp3-link ';        	
        	a.setAttribute("target","_blank"); 
        }
    }
}

/* menu - set selected */
function setSel(){
	var nav=document.getElementById('nav');
	var as=nav.getElementsByTagName('a');
	for(var i=0, c=as.length; i<c;i++){
		if(as[i].href==window.location){
			as[i].parentNode.className='selected';
			break;
		}
	}
}



/////////////////// SCRIPTS 

aMod_externalLink();
setSel();

try {
  document.execCommand('BackgroundImageCache', false, true);
} catch(e) {}


//]]>