// JavaScript Document
var default_line_color = "#027697";
function setUnderscoreLine(col_id){
	var oElement = document.getElementById("col" + col_id);
	if (oElement.style.backgroundColor != default_line_color){
		oElement.style.backgroundColor = default_line_color;
	}
	else{
		oElement.style.backgroundColor = "";
	}
		
}