function init(){
	initSearchBox();
	initMenu('mainnav');
}


function initSearchBox(){
	var defaultstr = 'Search Methpedia.org';
	var searchbox = document.getElementById('searchbox');
	searchbox.value = defaultstr;
	searchbox.onfocus = function(){
		if(searchbox.value == defaultstr){
			searchbox.value = '';
		}
	}
}



function initMenu(menuname) {
	if (document.getElementById) {
		navRoot = document.getElementById(menuname);
		
		for (i=0; i < navRoot.getElementsByTagName('LI').length; i++) {		
			node = navRoot.getElementsByTagName('LI')[i];		
			if (node.nodeName=="LI"){		
				node.onmouseover=function() {		
					var nextMenu = this.getElementsByTagName('UL');
					for(var y in nextMenu){
						if(nextMenu[y].nodeName == 'UL'){
							nextMenu[y].style.display = 'block';							
							nextMenu[y].style.marginLeft = '-50px';							
							return true;
						}
					}
				}
	
				node.onmouseout=function() {		
					//document.title = this.innerHTML;
					var nextMenu = this.getElementsByTagName('UL');
					for(var y in nextMenu){
						if(nextMenu[y].nodeName == 'UL'){
							nextMenu[y].style.display = 'none';							
						}
					}
				}
		
			}
		
		}
	
	}

}