function setTab(m,n){
	var tli=document.getElementById("menu"+m).getElementsByTagName("li");
	var mli=document.getElementById("main"+m).getElementsByTagName("ul");
	for(i=0;i<tli.length;i++){
		tli[i].className=i==n?"hover":"";
		mli[i].style.display=i==n?"block":"none";
	}
}

function selectAll(){
	var checklist = document.getElementsByName ("op_b[]");
		if(document.getElementById("controlAll").checked)
		{
			for(var i=0;i<checklist.length;i++)
			{
				checklist[i].checked = 1;
			} 
		}else{
			for(var j=0;j<checklist.length;j++)
			{
				checklist[j].checked = 0;
			}
	}
}
