function toggle(sElement){
		//alert('toggle action fired '+ sElement);
		if(!document.getElementById){
			return false;
			//alert('this funct don\'t work in this stoopid browsa')
		}
		var oElement=document.getElementById(sElement);
		if(oElement.className=="closed"){
			oElement.className="open";
			//alert('it is set to closed');
		}
		else{
			oElement.className="closed";
			//alert('it is set to closed');
		}
	return false;
}
//****************************************
// this function is used to create an array of functions to execute upon page load
//
// to register an event with the onloader, si

function add_load_event(func){
	var oOldOnLoad = window.onload;
	if(typeof window.onload != 'function'){
			window.onload=func;
	}
	
	else {
		window.onload=function(){
			oOldOnLoad();
			func();
		}
	}//alert("loader action added");
}


//****************************************
// 





//****************************************
//this function scans through all anchors and mainatians an array of anchors with the 
// rel attribute set to 'external'
// when any of the anchors stored in the array are clicked, the href URI will open in an 
// external window

function register_external_links(){
	if(!document.getElementsByTagName){
		return false;
	}
	var anchors = document.getElementsByTagName("a");
	for(var i=0; i<anchors.length; i++){
			var anchor = anchors[i];
			if(anchor.getAttribute("href") && anchor.getAttribute("rel")==("external")){
				anchor.target="_blank";
				//alert('external link');
			}
			else if(anchor.getAttribute("href") && anchor.getAttribute("rel")==("popup")){
				anchor.onclick = function (){
				window.open(this.href, 'window', 'width=620 ,height=525 ,status=no, toolbar=no, resizable=yes');
				return false;
				};
			//alert('popup link detected\n ready to pop up a window!');
			}
	}
}
			
			
		
	//alert('reg external links loaded');
//add the function to the window.onload list
add_load_event(register_external_links);


// changes the horizontal image on the page depending on the page identifier (id of the body element)
function set_horizontal_image(){
	//alert('set_horizontal_image fired!');
	if(!document.getElementById) return false;
	else{
		var oWide_img=document.getElementById('horizontal_image');
		//alert(oWide_img.src);
		var oBody = document.getElementsByTagName('body');
		//alert(oBody[0].getAttribute('id'));
		var sPage_identifier=oBody[0].getAttribute("id");
		if(sPage_identifier=='home'){
			oWide_img.src='assets/images/home_horizontal.jpg';
		}
		else if(sPage_identifier=='events'){
			oWide_img.src='../assets/images/horizontal_page_images/events_horizontal.jpg';
			oWide_img.alt='Ritchie painting at Ultra in Providence, RI';
		}
		else if(sPage_identifier=='clients'){
			oWide_img.src='../assets/images/horizontal_page_images/clients_horizontal.jpg';
		}
		else if(sPage_identifier=='contact'){
			oWide_img.src='../assets/images/horizontal_page_images/contact_horizontal.jpg';
		}else if(sPage_identifier=='links'){
			oWide_img.src='../assets/images/horizontal_page_images/links_horizontal.jpg';
		}
		else if(sPage_identifier=='bio'){
				oWide_img.src='../assets/images/horizontal_page_images/bio_horizontal.jpg';
		}
		else if(sPage_identifier=='gallery'){
				oWide_img.src='../assets/images/horizontal_page_images/gallery_horizontal.jpg';
		}
	}
}

//add_load_event(set_horizontal_image);