var activePan = 0;

function printpage() {
	window.print();  
}

function overPan(panNumber) {
	if (activePan != -1){
		hideDiv('roPan'+activePan);
		hideDiv('roPanImage'+activePan);
	}
	activePan = panNumber;

	showDiv('roPan'+activePan);
	showDiv('roPanImage'+activePan);
}

function showDiv(divID_as_a_string) {
	//alert(divID_as_a_string);
	changeDisplay( divID_as_a_string, 'block' )
	
}

function hideDiv(divID_as_a_string) {
	//alert(divID_as_a_string);
	changeDisplay( divID_as_a_string, 'none' ) 
}


function changeDisplay( elementId, setTo ) {
    if( document.getElementById ) {
        //DOM
        var theElement = document.getElementById( elementId );
    } else {
        if( document.all ) {
            //Proprietary DOM
            var theElement = document.all[ elementId ];
        } else {
            //Create an object to prevent errors further on
            var theElement = new Object();
        }
    }
    if( !theElement ) {
        /* The page has not loaded or the browser claims to support
        document.getElementById or document.all but cannot actually
        use either */
		return;
		
    }
    //Reference the style ...
    if( theElement.style ) { theElement = theElement.style; }
    if( typeof( theElement.display ) == 'undefined' &&
    !( window.ScriptEngine && ScriptEngine().indexOf('InScript') + 1 ) ) {
      //The browser does not allow us to change the display style
      //Alert something sensible (not what I have here ...)
      window.alert( 'Your browser does not support this' );
      return;
    }
    //Change the display style
    theElement.display = setTo;
}