stat=new Array();
 function changeMain(id){
	 objParent=document.getElementById(id);
	 objDaughter=document.getElementById('iDMain'+id);
	 if (stat[id]!=1) {
		 stat[id]=1;
		 objDaughter.style.display='block';
	 } else {
		 if(stat[id]==1){
			 stat[id]=0;
		 	 objDaughter.style.display='none';
		 } 
	} 
}

function showDiv(id) {
	//safe function to show an element with a specified id
		  
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		}
		else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
}

	
function hideDiv(id) {
	//safe function to hide an element with a specified id
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		}
		else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
}