function getPdfLng() {
	var curEll = document.getElementById("pdfLng");
	//alert (curEll.options[curEll.selectedIndex].value);
	pdfLng = curEll.options[curEll.selectedIndex].value;
	curUrl = window.location.href;
		
	var curUrl = curUrl.replace(/[\\?&]Lng=([^&#]*)/,"");
	
	curUrl.indexOf("?") != -1 ? ell = "&Lng="+pdfLng : ell = "?Lng="+pdfLng; 
	curUrl = curUrl+""+ell
	
	
	//if (curUrl.indexOf("?Lang") != -1) {
	//  	ell = "?Lang="+pdfLng;
	//} else {
	//	ell = "&Lang="+pdfLng;
	//}	
	 
	
	window.location.href = curUrl;
}


function insertAtCaret(obj, text) {
    
		if(document.selection) {
			obj.focus();
			var orig = obj.value.replace(/\r\n/g, "\n");
			var range = document.selection.createRange();

			if(range.parentElement() != obj) {
				return false;
			}

			range.text = text;
			
			var actual = tmp = obj.value.replace(/\r\n/g, "\n");

			for(var diff = 0; diff < orig.length; diff++) {
				if(orig.charAt(diff) != actual.charAt(diff)) break;
			}

			for(var index = 0, start = 0; 
				tmp.match(text) 
					&& (tmp = tmp.replace(text, "")) 
					&& index <= diff; 
				index = start + text.length
			) {
				start = actual.indexOf(text, index);
			}
		} else if(obj.selectionStart) {
			var start = obj.selectionStart;
			var end   = obj.selectionEnd;

			obj.value = obj.value.substr(0, start) 
				+ text 
				+ obj.value.substr(end, obj.value.length);
		}
		
		if(start != null) {
			setCaretTo(obj, start + text.length);
		} else {
			obj.value += text;
		}
}

function setCaretTo(obj, pos) {
		if(obj.createTextRange) {
			var range = obj.createTextRange();
			range.move('character', pos);
			range.select();
		} else if(obj.selectionStart) {
			obj.focus();
			obj.setSelectionRange(pos, pos);
		}
}