//here you place the ids of every element you want.
    //var ids=new Array('tabAvailability','tabMap','tabPhotos','tabAvailabilityUnavailable');

    function switchid(showid, hideids){	
    	hideallids(hideids);
    	showdiv(showid);
    }

    function hideallids(ids){
    	//loop through the array and hide each element by id
    	for (var i=0;i<ids.length;i++){
		    hidediv(ids[i]);
	    }		  
    }

    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';
		    }
	    }
    }
    
    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';
		    }
	    }
    }