function showPic(picSrc,x)
{
var width=600;
var height=600;
var w=(window.screen.availWidth-width)/2;
var h=(window.screen.availHeight-height)/2;
var config;
window.open('/viewpic.aspx?id='+picSrc, 'avi'+x, config='scrollbars=1,height='+height+',width='+width+',menubar=0,left='+w+',top='+h);
}