function expand(thistag, thisimg) {
   styleObj=document.getElementById(thistag).style;
   if (styleObj.display=='none')
   {
   	styleObj.display='';
		document.getElementById(thisimg).src = '../images/arrw_dn.gif';
	}
	
   
   else {
   	styleObj.display='none';
   	document.getElementById(thisimg).src = '../images/arrw_rt.gif';
   }
}	 
	 


function makeInvisible() {

		 styleObj=document.getElementById('text1').style;
		 styleObj.display='none';
		 		
		 styleObj=document.getElementById('text2').style;
		 styleObj.display='none';
		 		 
		 styleObj=document.getElementById('text3').style;
		 styleObj.display='none';
		 		 
		 styleObj=document.getElementById('text4').style;
		 styleObj.display='none';
		 
		 styleObj=document.getElementById('showHide').style;
		 styleObj.display='';
		 
			 
		 }

	



function showAll() {
		 styleObj=document.getElementById('text1').style;
		 styleObj.display='';
		 document.getElementById("arrow1").src = '../images/arrw_dn.gif';
		
		 styleObj=document.getElementById('text2').style;
		 styleObj.display='';
		 document.getElementById("arrow2").src = '../images/arrw_dn.gif';
		 
		 styleObj=document.getElementById('text3').style;
		 styleObj.display='';
		 document.getElementById("arrow3").src = '../images/arrw_dn.gif';
		 
		 styleObj=document.getElementById('text4').style;
		 styleObj.display='';
		 document.getElementById("arrow4").src = '../images/arrw_dn.gif';
		 		 		 
}

function hideAll() {
	 	 styleObj=document.getElementById('text1').style;
		 styleObj.display='none';
		 document.getElementById("arrow1").src = '../images/arrw_rt.gif';
		
		 styleObj=document.getElementById('text2').style;
		 styleObj.display='none';
		 document.getElementById("arrow2").src = '../images/arrw_rt.gif';
		 
		 styleObj=document.getElementById('text3').style;
		 styleObj.display='none';
		 document.getElementById("arrow3").src = '../images/arrw_rt.gif';
		 
		 styleObj=document.getElementById('text4').style;
		 styleObj.display='none';
		 document.getElementById("arrow4").src = '../images/arrw_rt.gif';

}