var doc = '';
	function ajax() {
		// Make a new XMLHttp object
		if (typeof window.ActiveXObject != 'undefined' ) doc = new ActiveXObject("Microsoft.XMLHTTP");
		else doc = new XMLHttpRequest();
	}
function ActSM(num){
	var divs = document.getElementById('cd2').getElementsByTagName('div');
	for(var i=0; i<divs.length; i++){
		if(divs[i].id.substr(0,3) == 'cdm'){
			divs[i].style.display = 'none';
		}
	}
	document.getElementById('cdm'+num).style.display='block';
	return;
}