// First Page of MSDS
<!--
function disableField(num)
{ 
		if(num == 1){//by GTF
	  	document.getElementById("gtfnum").disabled=false;	
	 	 document.getElementById("gtfnum").select();	
		var bra=document.getElementById("brand");
		 bra.selectedIndex=0;
		 bra.disabled=true; 
		var que=document.getElementById("query");
		 que.value="Description";
		 que.disabled=true; 
		
		}
		
		else{ // by brand & keywords
		var gtfnum=document.getElementById("gtfnum");
		 gtfnum.value="GTF Number";
		 gtfnum.disabled=true; 	
	  	document.getElementById("brand").disabled=false;
		document.getElementById("query").disabled=false;
			
		}
}


//-->