function heightadjust() {
var left = document.getElementById("nav_search");
var middle = document.getElementById("primaryMain");
var right = document.getElementById("secondaryMain");
if(left.offsetHeight){
	leftheight=left.offsetHeight;
}
else if(left.style.pixelHeight){
	leftheight=left.style.pixelHeight; 
}
if(middle.offsetHeight){
	middleheight=middle.offsetHeight;
}
else if(middle.style.pixelHeight){
	middleheight=middle.style.pixelHeight; 
}
if(right.offsetHeight){
	rightheight=right.offsetHeight;
}
else if(right.style.pixelHeight){
	rightheight=right.style.pixelHeight; 
}

if(leftheight < rightheight) {
	compareheight = rightheight;
}
else if(leftheight >= rightheight){
	compareheight = leftheight;
}

if(middleheight <= compareheight) {
	middle.style.height = compareheight + 'px';
}
}


function ImageSwap(cell,image_location,onoroffswitch) {
      var table_cell = document.getElementById(cell);
      var div_name = table_cell.getElementsByTagName("div")[0];
      table_cell.style.backgroundImage = 'url(' + image_location + ')';
if(onoroffswitch=="off") {
div_name.style.display = 'none';
}
if(onoroffswitch=="on") {
div_name.style.display = 'block';
}
}

function ImageSwap2(cell,image_first,image_clicked) {
var table_cell = document.getElementById(cell);
var div_name = table_cell.getElementsByTagName("div")[0];
if(table_cell.style.backgroundImage == 'url(' + image_first + ')' || table_cell.style.backgroundImage == '') {
table_cell.style.backgroundImage = 'url(' + image_clicked + ')';
div_name.style.display = 'block';
}
else {
table_cell.style.backgroundImage = 'url(' + image_first + ')';
div_name.style.display = 'none';
}
}