function openTab(id,special)
{
	if(!document.getElementById)return;
	for(var i=0;i<5;i++)
	{
		var el=document.getElementById("tab_"+i+"_link");
		if(el)el.className = el.className.replace(/(^|\s)active($|\s)/g,"$2");
	}
	document.getElementById("tab_"+id+"_link").className += " active";
	if(!special)
	{
		for(var i=0;i<5;i++)
		{
			var el=document.getElementById("tab_"+i+"_content");
			if(el && el.className.search(/( |^)dontshow( |$)/)<0)el.className += " dontshow";
			//if(el)el.style.display = "none";
		}
		el = document.getElementById("tab_"+id+"_content");
		if(el) el.className = el.className.replace(/(^|\s)dontshow($|\s)/g,"$2");;
	}
	else
	{
		for(var i=0;i<5;i++)
		{
			var el=document.getElementById("tab_"+i+"_content");
			if(el) {
				if(special == "openall") {
					el.className = el.className.replace(/(^|\s)dontshow($|\s)/g,"$2");
				}
				else if(el.className.search(/( |^)dontshow( |$)/)<0) {
					el.className += " dontshow";
				}
				el.style.display = (special=="openall")?"":"none";
			}
		}
	}
}