function showDivAvi(MyObj){




if (window.innerWidth || window.innerHeight){ 
docwidth = window.innerWidth; 
docheight = window.innerHeight; 
} 


//IE Mozilla 
if (document.body.clientWidth || document.body.clientHeight){ 
docwidth = document.body.clientWidth; 
docheight = document.body.clientHeight; 
} 





//alert('docwidth =' +docwidth )
//alert('docheight =' + docheight )


ElelementWidth = document.getElementById(MyObj).style.width
ElelementWidth  = ElelementWidth.replace('px','')



ElelementHeight = document.getElementById(MyObj).style.height
ElelementHeight  = ElelementHeight.replace('px','')


//alert('ElelementWidth   =' + ElelementWidth  )


destX = parseInt((docwidth-ElelementWidth) /2)
if(destX<0){destX=0;}


destY = parseInt((docheight-ElelementHeight) /2)
if(destY<0){destY=0;}

//alert(destX)

MyScrollTop = 0

//if (document.body.scrollTop){alert('document.body.scrollTop = ' + document.body.scrollTop)}
//if (window.pageYOffset) {alert('window.pageYOffset = ' + window.pageYOffset)}
if (document.body.scrollTop) {MyScrollTop =document.body.scrollTop}
if (window.pageYOffset) {MyScrollTop = window.pageYOffset}

//alert('MyScrollTop=' + MyScrollTop )
//alert('destY =' + destY )
//alert('ElelementHeight =' + ElelementHeight)


destX = parseInt(destX-90)
if (destX <0) { destX =0}

	document.getElementById(MyObj).style.top = parseInt(MyScrollTop + destY) + 'px';
	document.getElementById(MyObj).style.left = destX + 'px';
	document.getElementById(MyObj).style.display = 'block';

}