function subMenu(){				
		var menuNodes = $('nav').childNodes;		
		var menuButtons = new Array();		
		for(var i=0; i<menuNodes.length; i++){
				if(menuNodes[i].tagName=='LI'){
						menuButtons.push(menuNodes[i]);
					}
			}					
		
		//==========sub block width=========
		for(var i=0; i<menuButtons.length; i++){
				var subNodes = menuButtons[i].getElementsByTagName('UL');
				for(var j=0; j<subNodes.length; j++){					
					if(menuButtons[i].offsetWidth < 123){  // sub block min-width 							
						subNodes[j].style.width = '123px';								
					 }
					 else {subNodes[j].style.width = menuButtons[i].offsetWidth+'px'} // sub block width = button width	
				}			
			}	
			
		//=========sub menu corners========	
		if(navigator.userAgent.indexOf('MSIE 6')!=-1){
				var ie_flag = 1;
				var ie_fix = '<iframe></iframe>';
			}
			else{var ie_fix='&nbsp;'}
		var subBefore = '<li class="corners-top">' + ie_fix + '</li>';	
		for(var i=0; i<menuButtons.length; i++){
				var subMenu = menuButtons[i].getElementsByTagName('UL');					
				for(var j=0; j<subMenu.length; j++){					
					subMenu[j].innerHTML = subBefore + subMenu[j].innerHTML;  					
					if(ie_flag == 1){					
						 subMenu[j].getElementsByTagName('iframe')[0].style.height = subMenu[j].offsetHeight;
					 }
				  }					
			}					
		var links = $('nav').getElementsByTagName('A');
		for(var i=0; i<links.length; i++){				
				links[i].href = unescape(links[i].href);				
			}	
	}		
setTimeout('subMenu()', 500);