Setting the carat in a contentEditable div

Carat.js

function setCaratTo(contentEditableElement, position)
			{
			    var range,selection;
			    if(document.createRange)//Firefox, Chrome, Opera, Safari, IE 9+
			    {
			        range = document.createRange();
			        range.selectNodeContents(contentEditableElement);
			        //range.collapse(true);
			        	
					
					range.setStart(contentEditableElement.firstChild, position);
					range.setEnd(contentEditableElement.firstChild, position)
			
					selection = window.getSelection();
			        selection.removeAllRanges();
			        selection.addRange(range);
			    }
			    else if(document.selection)//IE 8 and lower
			    { 
			 	//range = document.body.createTextRange();
			        //range.moveToElementText(contentEditableElement);
			        //range.collapse(false);
			        //range.select();
			    }
			}

Thanks !
It seems the line "range.selectNodeContents(contentEditableElement);" is not required.