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/*
    Usage:
	
	<div class="equal-height">
		<div class="resize-me">Stuff</div>
		<div class="resize-me">Stuff</div>
		<div class="resize-me">Stuff</div>
		<div class="resize-me">Stuff</div>
	</div>
	
	<script src="equal-height.js"></script>
	<script>
		$(document).ready(function() {
			resize();
		});
	</script>
*/
 
// Go through all the equal-height -wrappers and elements to resize,
// calculate the tallest elements and fire up doResize() to resize them.
function resize() {
  
  // List of classes to resize
  var resizeThese = [
	    "resize-me",
	    "resize-example2"
    ];
  
  	// Find the equal-height divs
	$(".equal-height").each(function() {
		var $equal-height = $(this);
 
		// Loop through all the classes to be resized
		for (var i = 0; i < resizeThese.length; i++) {
			
	      		// Set the current class to be resized
			var currentClass = resizeThese[i],
				tallest = 0,
				divs = [],
				lastpos,
				curpos,
				first = 0;
	
			// Reset element heights
			resetResize(currentClass);
		
			// Get elements matching currentClass from inside equal-height wrapper
			$equal-height.find(currentClass).each(function() {
			
		               // Dont resize if element has noresize-class
		               if(!$(this).hasClass("noresize")) {
	                        
					// Get element position
					curpos = $(this).position().top;
		
					// If first element, set lastpos
					if(first == 0) {
						lastpos = curpos;
						first = 1;
					}
		
					// If the Y-position is different from lastpos, add a clear and doResize() the row
					if(lastpos != curpos) {
						doResize(divs, tallest);
						$(this).css("clear", "both");
		
						lastpos = $(this).position().top;
						tallest = 0;
						divs = [];
					}
						
					tallest = Math.max(tallest, $(this).height());
					divs.push($(this));
				}
			});
 
			// Call doResize() for the last row of elements
			doResize(divs, tallest);
		}
	});
}
 
// Reset element heights
function resetResize(currentClass) {
	$(currentClass).height("auto");
}
 
// Resize a bunch of elements
function doResize(divs, tallest) {
	for(i = 0; i < divs.tallest; i++) {
		divs[i].height(tallest);
	}
}