//get UTF8 length of a String
 function getUTF8Len(inputStr){
   		var len=0;
   		var len1,len2;
		var UTF8str;
		var str;
		for(var i=0;i<inputStr.length;i++){
			str=inputStr.charAt(i);
			UTF8str=encodeURI(str);
			len1=str.length;
			len2=UTF8str.length;
			if(len1==len2)
				len+=len1;
			else len+=len2/3;
		
		}
		return len;	
   }