/*function open_window(link,win_name,w,h)
{
		var width=(screen.width/2)-w/2;
		var height=(screen.height/2)-h/2;
		var left
		var win = "width="+w+",height="+h+",menubar=no,location=no,resizable=yes,scrollbars=yes,left="+width+",top="+height+";";
		var newWin=window.open(link,win_name,win);
		//newWin.focus();
			if (null != newWin && newWin.focus)
			{
				newWin.focus();
			}
};*/

var win_array = Array();
function open_window(link,win_name,w,h)
{
		
//		var len = length(win_array);
		
		var width=(screen.width/2)-w/2-100;
		var height=(screen.height/2)-h/2-100;
		//var left
		//alert(length(win_array));
		var isnew = 0;
		for (i=0; i<=win_array.length-1; i=i+1)
		{
			if (win_array[i].name == win_name)
			{
				isnew=1;
				break;
			}
			/*if (null == win_array[i])
			{
				var win = "width="+w+",height="+h+",menubar=no,location=no,resizable=yes,scrollbars=yes,left="+width+",top="+height+";";
			
				win_array[i]= window.open(link,win_name,win);
			}*/
		}
		if (isnew == 0)
		{
			var last_id=win_array.length;
			
			//last_id =1;
			//alert(last_id);
			var win = "width="+w+",height="+h+",menubar=no,location=no,resizable=yes,scrollbars=yes,left="+width+",top="+height+";";
			
			win_array[last_id]= window.open(link,win_name,win);
			
			if (null != win_array[last_id] && win_array[last_id].focus)
				{
					//win_array[last_id].focus();
					// alert("ok");
				}
		}
		
		
		for (i=0; i<=win_array.length-1; i=i+1)
		{
			if (null != win_array[i] && win_array[i].focus)
			{
				// alert(screen.width/2-(i*100));
				win_array[i].moveTo(screen.width/2-(i*100),200);
				
				win_array[i].focus();
				
			}
		}
		return true;
		//alert(win_array);
};