var historical3dgraph=null;var historical3danchor=null;function initialize_rates()
{elements=getElementsByTagAndClassName("img","historical3dgraph");if(elements.length==1)
{historical3dgraph=elements[0];}
if(historical3dgraph!=null)
{image=IMG({"src":"r_historical060.png"});anchor=A({"onclick":"historical_clicked()"},image);swapDOM(historical3dgraph,anchor);historical3dgraph=image;}}
function historical_clicked()
{src=historical3dgraph.src;if(src.indexOf("r_historical060.png")>=0)
{historical3dgraph.src="r_historical105.png";}
else if(src.indexOf("r_historical105.png")>=0)
{historical3dgraph.src="r_historical150.png";}
else if(src.indexOf("r_historical150.png")>=0)
{historical3dgraph.src="r_historical195.png";}
else if(src.indexOf("r_historical195.png")>=0)
{historical3dgraph.src="r_historical240.png";}
else if(src.indexOf("r_historical240.png")>=0)
{historical3dgraph.src="r_historical285.png";}
else if(src.indexOf("r_historical285.png")>=0)
{historical3dgraph.src="r_historical330.png";}
else if(src.indexOf("r_historical330.png")>=0)
{historical3dgraph.src="r_historical015.png";}
else if(src.indexOf("r_historical015.png")>=0)
{historical3dgraph.src="r_historical060.png";}}
addLoadEvent(initialize_rates);