var iPlus = new Image();
iPlus.src = "plus.gif";
var iMinus = new Image();
iMinus.src = "minus.gif";


function toggleBlock(name)
{	var aBlock,nameIdx	
	var level=name.length
	 for (var i=0;i<numBlocks;i++)
		{
		if (arNames[i]==name)
				nameIdx=i+1
		else																		
   		if (arNames[i].length>=level)
   		{	
   		aBlock = eval("document.all.m" + arNames[i] + ".style")
   		if (aBlock.display == "block")
   			{
   			eval("document.mImg" +(i+1)).src=iPlus.src
   			aBlock.display = "none"
   			if (level==2)
   				{
					spID=eval("document.all.sp" + i + ".style")			
					spID.color="white"
					}
   			}
   		}
   	}
   	aBlock = eval("document.all.m" + name  + ".style")
   	if (aBlock.display == "block")
   		{   		
   		eval("document.mImg" +nameIdx).src=iPlus.src
   		aBlock.display = "none"
   		if (level==2)
   			{
				spID=eval("document.all.sp" +(nameIdx-1)  + ".style")			
				spID.color="white"
				}
   		}
	else
		{
		eval("document.mImg" +nameIdx).src=iMinus.src
		aBlock.display = "block" 
		if (level==2)
   			{
			spID=eval("document.all.sp" +(nameIdx-1)  + ".style")			
			spID.color="red"
			}
   	  }				
   	return false			
   }	 



function closeAll()
{var aBlock;
 for (var i=0;i<numBlocks;i++)
   	{ 	
   	aBlock = eval("document.all.m" + arNames[i] + ".style")
   	if (aBlock.display == "block")
   			aBlock.display = "none"
   	}	
}