function catchEnter(e, formName)
{
	var code;

	if (!e)
	{
		var e = window.event;
	}

	if (e.keyCode)
	{
		code = e.keyCode;
	}
	else if (e.which)
	{
		code = e.which;
	}

	if (code==13)
	{
		eval("document.getElementById(\'" + formName + "\').submit();");
	}
}





var browserWinSize = new Array(2);
browserWinSize = browserWindowSize();

function showMVframe(frame, container, fheight, fwidth, url)
{
	browserWinSize = browserWindowSize();

	vscroll = (document.all ? document.documentElement.scrollTop : window.pageYOffset);
	hscroll = (document.all ? document.documentElement.scrollLeft : window.pageXOffset);

	document.getElementById(frame).src = url;
	document.getElementById(frame).style.height = fheight + "px";
	document.getElementById(frame).style.width = fwidth + "px";
	document.getElementById(container).style.top = Math.ceil((browserWinSize[1]/2) - fheight/2 + vscroll) + "px";
	document.getElementById(container).style.left = Math.ceil((browserWinSize[0]/2) - fwidth/2 + hscroll) + "px";
	grayOut(true);
	document.getElementById(container).style.display='block';
}

function hideMVframe(frame, container)
{
	grayOut(false);
	document.getElementById(frame).src = '';
	document.getElementById(container).style.display='none';
}

function browserWindowSize()
{
	var myWidth = 0, myHeight = 0;
	if( typeof( window.innerWidth ) == 'number' )
	{
		//Non-IE
		myWidth = window.innerWidth;
		myHeight = window.innerHeight;
	}
	else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) )
	{
		//IE 6+ in 'standards compliant mode'
		myWidth = document.documentElement.clientWidth;
		myHeight = document.documentElement.clientHeight;
	}
	else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) )
	{
		//IE 4 compatible
		myWidth = document.body.clientWidth;
		myHeight = document.body.clientHeight;
	}

	var windowsDimensions = new Array(2);
	windowsDimensions[0] = myWidth;
	windowsDimensions[1] = myHeight;

	return windowsDimensions;
}

function grayOut(vis, options)
{
	var options = options || {};
	var zindex = options.zindex || 5000;
	var opacity = options.opacity || 75;
	var opaque = (opacity / 100);
	var bgcolor = options.bgcolor || '#000000';
	var dark=document.getElementById('darkenScreenObject');
	if (!dark)
	{
		var tbody = document.getElementsByTagName("body")[0];
		var tnode = document.createElement('div');
		tnode.style.position='absolute';
		tnode.style.top='0px';
		tnode.style.left='0px';
		tnode.style.overflow='hidden';
		tnode.style.display='none';
		tnode.id='darkenScreenObject';
		tnode.setAttribute('onclick', "hideMVframe('mv_frame', 'multimedia_view')");
		tbody.appendChild(tnode);
		dark=document.getElementById('darkenScreenObject');
	}
	if (vis)
	{
		if( document.body && ( document.body.scrollWidth || document.body.scrollHeight ) )
		{
			var pageWidth = document.body.scrollWidth+'px';
			var pageHeight = document.body.scrollHeight+'px';
		}
		else if( document.body.offsetWidth )
		{
			var pageWidth = document.body.offsetWidth+'px';
			var pageHeight = document.body.offsetHeight+'px';
		}
		else
		{
			var pageWidth='100%';
			var pageHeight='100%';
		}
		dark.style.opacity=opaque;
		dark.style.MozOpacity=opaque;
		dark.style.filter='alpha(opacity='+opacity+')';
		dark.style.zIndex=zindex;
		dark.style.backgroundColor=bgcolor;
		dark.style.width= pageWidth;
		dark.style.height= pageHeight;
		dark.style.display='block';
	}
	else
	{
		dark.style.display='none';
	}
}