/**
*weina
*2005-05-21
*/
var dx,dy,i;
function smallit(){                      
	var width1 = Viewer.images1.width - 200;
	 
	if(width1>201){
		Viewer.images1.width=width1;             
		Viewer.images1.height = width1 * 0.7;
	}		          
}             
          
function bigit(){            
	var width1=Viewer.images1.width + 200;
	
	if(width1<4001){	
		Viewer.images1.width=width1;             
		Viewer.images1.height=width1 * 0.7;        
	}
}             

function realsize()
{
	Viewer.images1.height=560;     
	Viewer.images1.width=800;
	Viewer.block1.style.left = -200;
	Viewer.block1.style.top = -5;	
}