var sc;
var sc1;
var tl;
var bl;

function checkCanvas() {
	if (undefined !== window.HTMLCanvasElement)
		return true;
		 // В IE для VML надо добавить схему и стили.
	 	if (!document.namespaces['v']) {
	 		document.namespaces.add('v', 'urn:schemas-microsoft-com:vml', '#default#VML');
	 		var ss = document.createStyleSheet();
	 		ss.cssText = 'v\\:line {behavior:url(#default#VML);display:block;}';
	}
 	return false;
}

checkCanvas();

$( function() {

	tl = [];
	bl = [];
	sc = $("ins.tl-br").each(function(i){
        tl[i] = new SimpleCanvas(this);
		tl[i].drawLine({x:0, y:0}, {x:'100%', y:'100%'}, {opacity: 0.3, color:'#a1a1a1', width:1});
		tl[i].repaint();
	});
    sc1 = $("ins.bl-tr").each(function(i){
        bl[i] = new SimpleCanvas(this);
		bl[i].drawLine({x:0, y:'100%'}, {x:'100%', y:0}, {opacity: 0.3, color:'#a1a1a1', width:1});
		bl[i].repaint();
	});

	$(window).resize(repaintLines);
});

function repaintLines() {
	for (var i=0; i < sc.length; i++){
		tl[i].repaint();
	}
    for (var i=0; i < sc1.length; i++){
		bl[i].repaint();
	}
}