// Place your application-specific JavaScript functions and classes here
// This file is automatically included by javascript_include_tag :defaults

function dropDown(){
	if (document.all&&document.getElementById) {
		navRoot = document.getElementById("main_nav_ul");
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.nodeName=="LI") {
				node.onmouseover=function() {
					this.className+=" over";
				}
				node.onmouseout=function() {
					this.className=this.className.replace(" over", "");
				}
			}
		}
		
	}
}


// closing/opening hidden content
function toggle_hidden(action, element){
	var hidden_divs = document.getElementsByClassName('hidden_content');
	for (i=0; i<hidden_divs.length; i++){
		if(element.descendantOf(hidden_divs[i])){
			var hidden = hidden_divs[i].getElementsByClassName('hidden')[0];
			var visible = hidden_divs[i].getElementsByClassName('visible')[0];
			// wish scripaculououos was working with elements instead of element ids
			if (action == "open"){
				hidden.style.display = 'block';
				visible.style.display = 'none';
			}else{
				hidden.style.display = 'none';
				visible.style.display = 'block';
			}
		}	
	}
}


//Check if we're in IE 6
var agt				= navigator.userAgent.toLowerCase();
var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var is_ie6    = (is_ie && agt.indexOf("msie 6.")!=-1 );    


// Activate background image caching on IE6 to prevent image flicker
if (is_ie6) {
	document.execCommand('BackgroundImageCache', false, true);
}