function openDivDialog(divName, topValue) {
    var width = 575;
    var topValue = topValue || 140;
    
    var d = document.getElementById(divName);
  
	if (d) {
	   var left = (document.documentElement.scrollWidth - width) / 2;
	   if (left < 0) left = 0;
	   d.style.left = left + "px";
	   d.style.width = width + "px";
	   d.style.top = document.documentElement.scrollTop + topValue + "px";
	}
    var overlay = document.getElementById('overlayDiv');
    if (!overlay) {
        overlay = Element.extend(document.createElement('div'));
    	overlay.setAttribute('id', 'overlayDiv');
    	var body = document.getElementsByTagName('body')[0];
		body.appendChild(overlay);
		overlay.innerHTML = '<!--[if lte IE 6.5]><iframe></iframe><![endif]-->';
		overlay.style.zIndex = 50;
    }
    
	openDiv('overlayDiv');
	openDiv(divName);
	
	overlay.style.height = document.documentElement.scrollHeight + "px";
}

function openDivDialogMv(divName, topValue) {
    var width = 575;
    var topValue = topValue || 740;
    
    var d = document.getElementById(divName);
  
	if (d) {
	   var left = (document.documentElement.scrollWidth - width) / 2;
	   if (left < 0) left = 0;
	   left = 110
	   d.style.left = left + "px";
	   d.style.width = width + "px";
	   d.style.top = document.documentElement.scrollTop + topValue + "px";
	}
    var overlay = document.getElementById('overlayDiv');
    if (!overlay) {
        overlay = Element.extend(document.createElement('div'));
    	overlay.setAttribute('id', 'overlayDiv');
    	var body = document.getElementsByTagName('body')[0];
		body.appendChild(overlay);
		overlay.innerHTML = '<!--[if lte IE 6.5]><iframe></iframe><![endif]-->';
		overlay.style.zIndex = 50;
    }
    
	openDiv('overlayDiv');
	openDiv(divName);
	
	overlay.style.height = "1440px";
}

function closeDivDialog(divName) {
    if (document.getElementById('overlayDiv')) {
        closeDiv('overlayDiv');
    }
	closeDiv(divName);
}

function openDiv(elName) {
	var theElemenet = document.getElementById(elName);
	if (theElemenet) {
		theElemenet.style.display = "block";
	}
}

function closeDiv(elName) {
	var theElemenet = document.getElementById(elName);
	if (theElemenet) {
		theElemenet.style.display = "none";
	}
}