// JavaScript Document

function rollover(elm){
	elm.src = '../btn/btn_'+elm.id+'_over.gif';
}
function rollout(elm){
	elm.src = '../btn/btn_'+elm.id+'_out.gif';
}
function appendEvents(obj){
	for(var i=0;i<obj.length;i++){
		var elm = obj[i].getElementsByTagName('img')[0];
		elm.onmouseover = function(){
			rollover(this);
		}
		elm.onmouseout = function(){
			rollout(this);
		}
	}
}

window.onload = function(){
	var bbtn = document.getElementById('collegenavi');
	var gbtn = document.getElementById('glovalnavigation');
	//var lbtn = document.getElementById('language');
	appendEvents(bbtn.getElementsByTagName('a'));
	appendEvents(gbtn.getElementsByTagName('a'));
	//appendEvents(lbtn.getElementsByTagName('a'));
	
	var f = document.getElementById('footer');
	var c = document.createElement('img');
	c.setAttribute('alt', 'Copyright KATAYANAGI INSTITUTE. All Rights Reserved.');
	c.setAttribute('src', '../images/footer_copyright.gif');
	f.appendChild(c);
	
	//replaceHR2DIV();
}

function replaceHR2DIV() {
	var margin = "1.5em";
	var hrs = document.getElementsByTagName('hr');
	var c = hrs.length;
	for(var i=0; i < c; i++) {
		var box = document.createElement('div');
			box.setAttribute('class', 'hr_replaced');
			box.style.clear   = "both";
			box.style.margin  = "0 " + margin + " " + margin + " 0";
			box.style.padding = margin + " 0 0 " + margin;
		var line = document.createElement('p');
			line.style.background = "#999";
			line.style.border     = "1px solid #666";
			line.style.borderTop  = "1px solid #CCC";
			line.style.borderLeft = "1px solid #CCC";
			line.style.height     = "1px";
			line.style.margin     = "0";
			line.style.padding    = "0";
			line.style.overflow   = "hidden";
		box.appendChild(line);
		hrs[i].parentNode.insertBefore(box, hrs[i]);
	}
	while(hrs[0]) {
		hrs[0].parentNode.removeChild(hrs[0]);
	}
}