function chgsize(fname) {
    var oImg;
    oImg=fname
	if (oImg.height>530) oImg.height=530;
	if (oImg.width>700) oImg.width=700;
}

function smallit(){            
	var height1=controlimg.height;            
	var width1=controlimg.width;            
	controlimg.height=height1/1.2;            
	controlimg.width=width1/1.2;           
}             
          
function bigit(){            
	var height1=controlimg.height;            
	var width1=controlimg.width;            
	controlimg.height=height1*1.2;          
	controlimg.width=width1*1.2;           
}             
function fullit(url)
{
	var width_s=screen.width-10;
	var height_s=screen.height-10;
	window.open(url,"viewimage", "width="+width_s+",height="+height_s+",left=0,top=0,location=no,toolbar=no,status=no,resizable=no,scrollbars=yes,menubar=no,directories=no");
}
function featsize()
{
	var width1=controlimg.width;            
	var height1=controlimg.height;            
	var width2=700;            
	var height2=530;            
	var h=height1/height2;
	var w=width1/width2;
	if(height1<height2&&width1<width2)
	{
		controlimg.height=height1;            
		controlimg.width=width1;           
	}
	else
	{
		if(h>w)
		{
			controlimg.height=height2;          
			controlimg.width=width1*height2/height1;           
		}
		else
		{
			controlimg.width=width2;           
			controlimg.height=height1*width2/width1;          
		}
	}
	
}