// JavaScript Document

	// handling select mengeluarkan data di text
	function doSelectChange(el,dest) {	
	
	    var ele = el.options[el.selectedIndex].text
	
	 	dstext = dest.value
		ds = dstext.lastIndexOf(",")
		
		var tk = dstext.split(",");
		var len = (tk.length)
		var i = 0;
		var nu = el.options[el.selectedIndex].text 
	
		for(i=0;i<len;i++){ 
			
			if(nu==tk[i]){ 
				nu = ""; 
				el.options[el.selectedIndex].selected = false; 
			} 
			
		} 
				
		if(len=="9"){ 
			alert("Maximum 8 Area"); 
			el.options[el.selectedIndex].selected = false; 
		} 
	
		else if(nu != ""){ 
					
	
			extension = dstext.substring(ds+1, dstext.length).toLowerCase() 			
			
			nuval = dstext.substring(0,ds+1) 
			neo = nuval + nu + ","; 
			dest.value = neo; 
		} 
		
	}