function getElementsByClassName(classname) {
	var node = document.getElementsByTagName("body")[0];
	var a = [];
	var re = new RegExp('\\b' + classname + '\\b');
	var els = node.getElementsByTagName("*");
	for(var i=0,j=els.length; i<j; i++)
	if(re.test(els[i].className))a.push(els[i]);
	return a;
}

function imgSwap() {
	var btns = document.getElementsByClassName('img-over');
	for (x=0; x<btns.length; x++ ){
		var suffix = btns[x].src.substring(btns[x].src.lastIndexOf('.'));
		btns[x].onmouseover = function() {
			this.src = this.src.replace(suffix, '_o'+suffix);
		}
		btns[x].onmouseout = function() {
			this.src = this.src.indexOf('_o')!=-1?this.src.replace('_o',''):this.src;
		}
	}
}

function fetchURL(form_name)
{
	var ele = $(form_name);
	goURL = ele.options[ele.selectedIndex].value;
	if (goURL) location.href = goURL;
}