function selectbox(num,div_number) { 
	var t = "";
	 for(var i = 1; i <= div_number; i++){
	 	t = new getObj('tdropdown_'+i); 
	 	t.style.display = "none";
	 }
	 
	 	 
	 var f = new getObj('tdropdown_'+num); 
	 if (f.style.display == 'none'){ 
		 f.style.display = ''; 
	 } 
	 else { 
		 f.style.display = 'none'; 
	 }	
 } 

function getObj(name) { 
	 if (document.getElementById) { 
		 this.obj = document.getElementById(name); 
		 
		 //alert(name);
		 
		 this.style = document.getElementById(name).style; 
	 } 
	 else if (document.all) { 
		 this.obj = document.all[name]; 
		 this.style = document.all[name].style; 
	 } 
	 else if (document.layers) { 
		 this.obj = document.layers[name]; 
		 this.style = document.layers[name]; 
	 } 
 } 
 
 function left_style(el_name){
 	myArray = new Array("al_A","al_B","al_C","al_D","al_E","al_F","al_G","al_H","al_I","al_J","al_K",
		"al_L","al_M","al_N","al_O","al_P","al_Q","al_R","al_S","al_T","al_U","al_V","al_W");

 	if(document.getElementById){
 		for(var i=0;i<myArray.length;i++){
			document.getElementById(myArray[i]).style.color = "#4a2c7a";
			document.getElementById(myArray[i]).style.textDecoration="underline";
			document.getElementById(el_name).style.color="#999923";
			document.getElementById(el_name).style.textDecoration="none";
		}
 	} else if (document.all) {
		for(var i=0;i<myArray.length;i++){
			document.all(myArray[i]).style.color = '#4a2c7a';
			document.all(el_name).style.color='#999923';
		}		
	}
 }