DHTML_modalMessage = function()
{
	var url;
	var htmlOfModalMessage;
	var divs_transparentDiv;
	var divs_content;
	var iframe;
	var layoutCss;
	var width;
	var height;
	var existingBodyOverFlowStyle;
	var dynContentObj;
	var cssClassOfMessageBox;
	var shadowDivVisible;
	var shadowOffset;
	var MSIE;
	this.url = '';
	this.htmlOfModalMessage = '';
	this.layoutCss = 'modal-message.css';
	this.height = 200;
	this.width = 400;
	this.cssClassOfMessageBox = false;
	this.shadowDivVisible = true;
	this.shadowOffset = 5;
	this.MSIE = false;
	if(navigator.userAgent.indexOf('MSIE')>=0) this.MSIE = true;
}
DHTML_modalMessage.prototype = {
	setSource : function(urlOfSource)
	{
		this.url = urlOfSource;
		
	}	
	,
	setHtmlContent : function(newHtmlContent)
	{
		this.htmlOfModalMessage = newHtmlContent;
		
	}
	,
	setSize : function(width,height)
	{
		if(width)this.width = width;
		if(height)this.height = height;		
	}
	,		
	setCssClassMessageBox : function(newCssClass)
	{
		this.cssClassOfMessageBox = newCssClass;
		if(this.divs_content){
			if(this.cssClassOfMessageBox)
				this.divs_content.className=this.cssClassOfMessageBox;
			else
				this.divs_content.className='modalDialog_contentDiv';	
		}
	}
	,	
	setShadowOffset : function(newShadowOffset)
	{
		this.shadowOffset = newShadowOffset
					
	}
	,	
	display : function()
	{
		if(!this.divs_transparentDiv){
			this.__createDivs();
		}	
		this.divs_transparentDiv.style.display='block';
		this.divs_content.style.display='block';
		this.divs_shadow.style.display='block';		
		if(this.MSIE)this.iframe.style.display='block';	
		this.__resizeDivs();
		window.refToThisModalBoxObj = this;		
		setTimeout('window.refToThisModalBoxObj.__resizeDivs()',150);
		this.__insertContent();	// Calling method which inserts content into the message div.
	}
	,
	setShadowDivVisible : function(visible)
	{
		this.shadowDivVisible = visible;
	}
	,
	close : function()
	{
		this.divs_transparentDiv.style.display='none';
		this.divs_content.style.display='none';
		this.divs_shadow.style.display='none';
		if(this.MSIE)this.iframe.style.display='none';
		
	}	
	,
	addEvent : function(whichObject,eventType,functionName,suffix)
	{ 
	  if(!suffix)suffix = '';
	  if(whichObject.attachEvent){ 
	    whichObject['e'+eventType+functionName+suffix] = functionName; 
	    whichObject[eventType+functionName+suffix] = function(){whichObject['e'+eventType+functionName+suffix]( window.event );} 
	    whichObject.attachEvent( 'on'+eventType, whichObject[eventType+functionName+suffix] ); 
	  } else 
	    whichObject.addEventListener(eventType,functionName,false); 	    
	} 
	,
	__createDivs : function()
	{
		this.divs_transparentDiv = document.createElement('DIV');
		this.divs_transparentDiv.className='modalDialog_transparentDivs';
		this.divs_transparentDiv.style.left = '0px';
		this.divs_transparentDiv.style.top = '0px';
		document.body.appendChild(this.divs_transparentDiv);
		this.divs_content = document.createElement('DIV');
		this.divs_content.className = 'modalDialog_contentDiv';
		this.divs_content.id = 'DHTMLSuite_modalBox_contentDiv';
		this.divs_content.style.zIndex = 100000;
		if(this.MSIE){
			this.iframe = document.createElement('<IFRAME src="about:blank" frameborder=0>');
			this.iframe.style.zIndex = 90000;
			this.iframe.style.position = 'absolute';
			document.body.appendChild(this.iframe);	
		}
		document.body.appendChild(this.divs_content);
		this.divs_shadow = document.createElement('DIV');
		this.divs_shadow.className = 'modalDialog_contentDiv_shadow';
		this.divs_shadow.style.zIndex = 95000;
		document.body.appendChild(this.divs_shadow);
		window.refToModMessage = this;
		this.addEvent(window,'scroll',function(e){ window.refToModMessage.__repositionTransparentDiv() });
		this.addEvent(window,'resize',function(e){ window.refToModMessage.__repositionTransparentDiv() });
	}
	,
	__getBrowserSize : function()
	{
    	var bodyWidth = document.documentElement.clientWidth;
    	var bodyHeight = document.documentElement.clientHeight;
    	
		var bodyWidth, bodyHeight; 
		if (self.innerHeight){ // all except Explorer 
		   bodyWidth = self.innerWidth; 
		   bodyHeight = self.innerHeight; 
		}  else if (document.documentElement && document.documentElement.clientHeight) {
		   bodyWidth = document.documentElement.clientWidth; 
		   bodyHeight = document.documentElement.clientHeight; 
		} else if (document.body) {
		   bodyWidth = document.body.clientWidth; 
		   bodyHeight = document.body.clientHeight; 
		} 
		return [bodyWidth,bodyHeight];		
	}
	,
    __resizeDivs : function()
    {
    	var topOffset = Math.max(document.body.scrollTop,document.documentElement.scrollTop);
		if(this.cssClassOfMessageBox)
			this.divs_content.className=this.cssClassOfMessageBox;
		else
			this.divs_content.className='modalDialog_contentDiv';	
    	if(!this.divs_transparentDiv)return;
    	var st = Math.max(document.body.scrollTop,document.documentElement.scrollTop);
    	var sl = Math.max(document.body.scrollLeft,document.documentElement.scrollLeft);
    	window.scrollTo(sl,st);
    	setTimeout('window.scrollTo(' + sl + ',' + st + ');',10);
    	this.__repositionTransparentDiv();
		var brSize = this.__getBrowserSize();
		var bodyWidth = brSize[0];
		var bodyHeight = brSize[1];
      	this.divs_content.style.width = this.width + 'px';
    	this.divs_content.style.height= this.height + 'px';  	
    	var tmpWidth = this.divs_content.offsetWidth;	
    	var tmpHeight = this.divs_content.offsetHeight;
    	this.divs_content.style.left = Math.ceil((bodyWidth - tmpWidth) / 2) + 'px';;
    	this.divs_content.style.top = (Math.ceil((bodyHeight - tmpHeight) / 2) +  topOffset) + 'px';
 		if(this.MSIE){
 			this.iframe.style.left = this.divs_content.style.left;
 			this.iframe.style.top = this.divs_content.style.top;
 			this.iframe.style.width = this.divs_content.style.width;
 			this.iframe.style.height = this.divs_content.style.height;
 		}
    	this.divs_shadow.style.left = (this.divs_content.style.left.replace('px','')/1 + this.shadowOffset) + 'px';
    	this.divs_shadow.style.top = (this.divs_content.style.top.replace('px','')/1 + this.shadowOffset) + 'px';
    	this.divs_shadow.style.height = tmpHeight + 'px';
    	this.divs_shadow.style.width = tmpWidth + 'px';
    	if(!this.shadowDivVisible)this.divs_shadow.style.display='none';	// Hiding shadow if it has been disabled
    }
    ,
    __repositionTransparentDiv : function()
    {
    	this.divs_transparentDiv.style.top = Math.max(document.body.scrollTop,document.documentElement.scrollTop) + 'px';
    	this.divs_transparentDiv.style.left = Math.max(document.body.scrollLeft,document.documentElement.scrollLeft) + 'px';
		var brSize = this.__getBrowserSize();
		var bodyWidth = brSize[0];
		var bodyHeight = brSize[1];
    	this.divs_transparentDiv.style.width = bodyWidth + 'px';
    	this.divs_transparentDiv.style.height = bodyHeight + 'px';		
    }
	,
    __insertContent : function()
    {
		if(this.url){	// url specified - load content dynamically
			ajax_loadContent('DHTMLSuite_modalBox_contentDiv',this.url);
		}else{	// no url set, put static content inside the message box
			this.divs_content.innerHTML = this.htmlOfModalMessage;	
		}
    }		
}