function changeImage(str) {
	if(str=="lease"){
		document.getElementById('right_flow').src = './img/flow/lease.jpg';
	}else if(str=="buy"){
		document.getElementById('right_flow').src = './img/flow/buy.jpg';
	}else if(str=="sell"){
		document.getElementById('right_flow').src = './img/flow/sell.jpg';
	}else if(str=="fl1"){
		document.getElementById('flowC').src = './img/flow/fl1.jpg';
	}else if(str=="fl2"){
		document.getElementById('flowC').src = './img/flow/fl2.jpg';
	}else if(str=="fl3"){
		document.getElementById('flowC').src = './img/flow/fl3.jpg';
	}else if(str=="fl4"){
		document.getElementById('flowC').src = './img/flow/fl4.jpg';
	}else if(str=="fl5"){
		document.getElementById('flowC').src = './img/flow/fl5.jpg';
	}
}
function pulldown(action,target){
  listthis=document.getElementById(target);
  if(action=="over"){
    listthis.style.display='block';
  }else if(action=="out"){
    listthis.style.display='none';
  }     
}