add data-start-indexv #427
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88eb0af776
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6b6c87db97
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@ -748,7 +748,10 @@ var Reveal = (function(){
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function getPreviousVerticalIndex( stack ) {
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function getPreviousVerticalIndex( stack ) {
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if( typeof stack === 'object' && typeof stack.setAttribute === 'function' && stack.classList.contains( 'stack' ) ) {
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if( typeof stack === 'object' && typeof stack.setAttribute === 'function' && stack.classList.contains( 'stack' ) ) {
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return parseInt( stack.getAttribute( 'data-previous-indexv' ) || 0, 10 );
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// Prefer manually defined start-indexv
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var attributeName = stack.hasAttribute( 'data-start-indexv' ) ? 'data-start-indexv' : 'data-previous-indexv';
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return parseInt( stack.getAttribute( attributeName ) || 0, 10 );
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}
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}
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return 0;
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return 0;
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